06 April 2024

Phase Shift and Infinitesimal Wave Energy Loss Equations - Journal of Physical Chemistry & Biophysics

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                          Journal of Physical Chemistry & Biophysics

Research Article



Soumendra Nath Thakur1*, Deep Bhattacharjee2

1Department of Computer Science and Engineering, Tagore's Electronic Lab, Kolkata, West Bengal, India; 2Department of Physics, Electro-Gravitational Space Propulsion Laboratory, Integrated Nanosciences Research, Kanpur, India



ABSTRACT

The research paper provides a mathematical framework for understanding phase shift in wave phenomena, bridging theoretical foundations with real-world applications. It emphasizes the importance of phase shift in physics and engineering, particularly in fields like telecommunications and acoustics. Key equations are introduced to explain phase angle, time delay, frequency, and wavelength relationships. The study also introduces the concept of time distortion due to a 1° phase shift, crucial for precise time measurements in precision instruments. The research also addresses infinitesimal wave energy loss related to phase shift, enriching our understanding of wave behaviour and impacting scientific and engineering disciplines.

Keywords: Phase shift; Phase angle; Time distortion; Wave energy loss; Wave phenomena
 


INTRODUCTION

The study of phase shift in wave phenomena stands as a fundament in physics and engineering, playing an indispensable role in various applications. Phase shift refers to the phenomenon where a periodic waveform or signal appears displaced in time or space relative to a reference waveform or signal. This displacement, measured in degrees or radians, offers profound insights into the intricate behaviour of waves [1].

Phase shift analysis is instrumental in comprehending wave behaviour and is widely employed in fields such as telecommunications, signal processing, and acoustics, where precise timing and synchronization are paramount. The ability to quantify and manipulate phase shift is pivotal in advancing our understanding of wave phenomena and harnessing them for practical applications.

This research is dedicated to exploring the fundamental principles of phase shift, unravelling its complexities, and establishing a clear framework for analysis. It places a spotlight on essential entities, including waveforms, reference points, frequencies, and units, which are critical in conducting precise phase shift calculations. The presentation of key equations further enhances our grasp of the relationships between phase angle, time delay, frequency, and wavelength, illuminating the intricate mechanisms governing wave behaviour [2].

Moreover, this research introduces the concept of time distortion,
 


which encapsulates the temporal shifts induced by a 1° phase shift. This concept is especially relevant when considering phase shift effects in real-world scenarios, particularly in precision instruments like clocks and radar systems.

In addition to phase shift, this research addresses the topic of infinitesimal wave energy loss and its close association with phase shift. It provides a set of equations designed to calculate energy loss under various conditions, taking into account factors such as phase shift, time distortion, and source frequencies. These equations expand our understanding of how phase shift influences wave energy, emphasizing its practical implications.

In summary, this research paper endeavours to offer a comprehensive exploration of phase shift analysis, bridging the gap between theoretical foundations and practical applications. By elucidating the complex connections between phase shift, time, frequency, and energy, this study enriches our comprehension of wave behaviour across a spectrum of scientific and engineering domains (Figure 1).

MATERIALS AND METHODS

Relationship between phase shift, time interval, frequency and time delay

The methodological approach in this research involves the formulation and derivation of fundamental equations related to phase shift analysis. These equations establish the relationships

 

Correspondence to: Soumendra Nath Thakur, Department of Computer Science and Engineering, Tagore's Electronic Lab, Kolkata, West Bengal,
India, E-mail: postmasterenator@gmail.com

Received: 28-Sep-2023, Manuscript No. JPCB-23-27248; Editor assigned: 02-Oct-2023, PreQC No. JPCB-23-27248 (PQ); Reviewed: 16-Oct-2023,

QC No. JPCB-23-27248; Revised: 23-Oct-2023, Manuscript No. JPCB-23-27248 (R); Published: 30-Oct-2023, DOI: 10.35248/2161-0398.23.13.365.

Citation: Thakur SN, Bhattacharjee D (2023) Phase Shift and Infinitesimal Wave Energy Loss Equations. J Phys Chem Biophys. 13:365.

Copyright: © 2023 Thakur SN, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

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between phase shift T(deg), time interval (T), time delay (Δt),
frequency (f), and wavelength (λ) in wave phenomena. The derived equations∝ include:

T(deg) 1/f-this equation establishes the inverse proportionality between the time interval for 1° of phase shift T(deg) and frequency (f).

1° phase shift=T/360-expresses the relationship between 1° phase shift and time interval (T).

1° phase shift=T/360=(1/f)/360-further simplifies the equation for 1° phase shift, revealing its dependence on frequency.

T(deg)=(1/f)/360-provides a direct formula for calculating T(deg) based on frequency, which can be invaluable in phase shift analysis.

Time delay (Δt)=T(deg)=(1/f)/360-expresses time delay (or time distortion) in terms of phase shift and frequency.






















Figure 1: Shows graphical representation of phase shift. (A) An oscillating wave in red with a 0° phase shift in the oscillation wave;

(B) Presents another wave with 45° phase shift shown in blue; (C) The 90° phase shift represented in blue; (D) Represents a graphical representation of frequency vs. phase. Note: ( ), ( ) oscillating waves.

Formulation of phase shift equations

The methodological approach in this research involves the formulation and derivation of fundamental equations related to phase shift analysis. These equations establish the relationships between phase angle (Φ°), time delay (Δt), frequency (f), and wavelength (λ) in wave phenomena. The equations developed are:

Φ°=360° × f × Δt-this equation relates the phase angle in degrees to the product of frequency and time delay, providing a fundamental understanding of phase shift.

Δt=Φ°/(360° × f)-this equation expresses the time delay (or time distortion) in terms of the phase angle and frequency, elucidating the temporal effects of phase shift.

f=Φ°/(360° × Δt)-this equation allows for the determination of frequency based on the phase angle and time delay,
 
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contributing to frequency analysis.

λ=c/f-the wavelength equation calculates the wavelength (λ) using the speed of propagation (c) and frequency (f), applicable to wave propagation through different media [3].

Relevant equations

The research paper on phase shift analysis and related concepts provides a set of equations that play a central role in understanding phase shift, time intervals, frequency, and their interrelationships. These equations are fundamental to the study of wave phenomena and their practical applications. Here are the relevant equations presented in the research.

Phase shift equations: Relationship between phase shift, time interval, and frequency.

These equations describe the connection between phase shift, time interval∝(T), and frequency (f).

T(deg) 1/f-indicates the inverse proportionality between the time interval for 1° of phase shift T(deg) and frequency

(f).

1° phase shift=T/360-relates 1° phase shift to time interval
(T).

1° phase shift=T/360=(1/f)/360-simplifies the equation for 1° phase shift, emphasizing its dependence on frequency.

T(deg)=(1/f)/360-provides a direct formula for calculating T(deg) based on frequency.

Phase angle equations

These equations relate phase angle (Φ°) to frequency (f) and time delay (Δt), forming the core of phase shift analysis.

Φ°=360° × f × Δt-this equation defines the phase angle (in degrees) as the product of frequency and time delay.

Δt=Φ°/(360° × f)-expresses time delay (or time distortion) in terms of phase angle and frequency.

f=Φ°/(360° × Δt)-allows for the calculation of frequency based on phase angle and time delay.

Wavelength equation

This equation calculates the wavelength (λ) based on the speed of propagation (c) and frequency (f).

λ=c/f

The wavelength (λ) is determined by the speed of propagation (c) and the frequency (f) of the wave.

Time distortion equation

This equation quantifies the time shift caused by a 1° phase shift and is calculated based on the time interval for 1° of phase shift T(deg), which is inversely proportional to frequency (f).

Time Distortion (Δt)=T(deg)=(1/f)/360-expresses the time distortion (Δt) as a function of T(deg) and frequency (f).

Infinitesimal loss of wave energy equations

These equations relate to the infinitesimal loss of wave energy (ΔE) due to various factors, including phase shift.

ΔE=hfΔt-calculates the infinitesimal loss of wave energy
 



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(ΔE) based on Planck's constant (h), frequency (f), and time distortion (Δt).

ΔE=(2πhf1/360) × T(deg)-determines ΔE when source frequency (f1) and phase shift T(deg) are known.

ΔE=(2πh/360) × T(deg) × (1/Δt)-calculates ΔE when phase shift T(deg) and time distortion (Δt) are known.

These equations collectively form the foundation for understanding phase shift analysis, time intervals, frequency relationships, and the quantification of infinitesimal wave energy loss. They are instrumental in both theoretical analyses and practical applications involving wave phenomena [4,5].

RESULTS

This section introduces two key concepts that deepen our understanding of wave behaviour and its practical implications: Time distortion and infinitesimal loss of wave energy. These concepts focus on the temporal aspects of phase shift and offer valuable insights into the energy dynamics of wave phenomena.

Time distortion

The concept of time distortion (Δt) is a pivotal bridge between

phase shift analysis and precise time measurements, particularly in applications where accuracy is paramount. Time distortion represents the temporal shift that occurs as a consequence of a 1° phase shift in a wave.

Consider a 5 MHz wave as an example. A 1° phase shift on this wave corresponds to a time shift of approximately 555 picoseconds (ps). In other words, when a wave experiences a 1° phase shift, specific events or points on the waveform appear displaced in time by this minuscule but significant interval.

Time distortion is a crucial consideration in various fields, including telecommunications, navigation systems, and scientific instruments. Understanding and quantifying this phenomenon enables scientists and engineers to make precise time measurements and synchronize systems accurately [6].

Infinitesimal loss of wave energy

In addition to time distortion, this research delves into the intricacies of infinitesimal wave energy loss (ΔE) concerning phase shift. It provides a framework for quantifying the diminutive energy losses experienced by waves as a result of various factors, with phase shift being a central element.

The equations presented in this research allow for the calculation of ΔE under different scenarios. These scenarios consider parameters such as phase shift, time distortion, and source frequencies. By understanding how phase shift contributes to energy loss, researchers and engineers gain valuable insights into the practical implications of this phenomenon.

Infinitesimal wave energy loss has implications in fields ranging from quantum mechanics to telecommunications. It underlines the importance of precision in wave-based systems and highlights the trade-offs between manipulating phase for various applications and conserving wave energy.

In summary, this section serves as an introduction to the intricate concepts of time distortion and infinitesimal loss of wave energy. These concepts provide a more comprehensive picture of wave
 
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behaviour, offering practical tools for precise measurements and energy considerations in diverse scientific and engineering domains [7,8].

Phase shift calculations and example

To illustrate the practical application of the derived equations of phase shift T(deg), an example calculation is presented:

Phase Shift Example 1:1° Phase Shift on a 5 MHz Wave.

The calculation demonstrates how to determine the time shift caused by a 1° phase shift on a 5 MHz wave. It involves substituting the known frequency (f=5 MHz) into the equation for T(deg).

T(deg)=(1/f)/360; f=5 MHz (5,000,000 Hz)

Now, plug in the frequency (f) into the equation for T(deg). T(deg)={1/(5,000,000 Hz)}/360 Calculate the value of T(deg).

T(deg) ≈ 555 picoseconds (ps)

So, a 1° phase shift on a 5 MHz wave corresponds to a time shift of approximately 555 picoseconds (ps).

Loss of wave energy calculations and example

Loss of wave energy example 1: To illustrate the practical applications of the derived equations of loss of wave energy, example calculation is presented.

Oscillation frequency 5 MHz, when 0° Phase shift in frequency

This calculation demonstrate how to determine the energy (E1) and infinitesimal loss of energy (ΔE) of an oscillatory wave, whose frequency (f1) is 5 MHz, and Phase shift T(deg)=0° (i.e. no phase shift).

To determine the energy (E1) and infinitesimal loss of energy (ΔE) of an oscillatory wave with a frequency (f1) of 5 MHz and a phase shift T(deg) of 0°, use the following equations:

Calculate the energy (E1) of the oscillatory wave:

E1=hf1

Where, h is Planck's constant ≈6.626 × 10-34 J•s, f1 is the frequency of the wave, which is 5 MHz (5 × 106 Hz). E1={6.626 × 10-34 J•s} × (5 × 106 Hz)=3.313 × 10-27 J

So, the energy (E1) of the oscillatory wave is approximately 3.313 × 10-27 Joules. To determine the infinitesimal loss of energy (ΔE), use the formula

ΔE=hfΔt

Where, h is Planck's constant {6.626 × 10-34 J•s}, f1 is the frequency of the wave (5 × 106 Hz).

Δt is the infinitesimal time interval, and in this case, since there's no phase shift, T(deg)=0°, Δt=0.

ΔE={6.626 × 10-34 J•s} × (5 × 106 Hz) × 0=0 (Joules)

The infinitesimal loss of energy (ΔE) is 0 joules because there is no phase shift, meaning there is no energy loss during this specific time interval.

Resolved, the energy (E₁) of the oscillatory wave with a frequency of 5 MHz and no phase shift is approximately 3.313 × 10-27 Joules.

There is no infinitesimal loss of energy (ΔE) during this specific
 



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time interval due to the absence of a phase shift.

Loss of wave energy example 2: To illustrate the practical applications of the derived equations of loss of wave energy, example calculation is presented.

Original oscillation frequency 5 MHz, when 1° Phase shift compared to original frequency.

This calculation demonstrate how to determine the energy (E2) and infinitesimal loss of energy (ΔE) of another oscillatory wave, compared to the original frequency (f1) of 5 MHz and Phase shift T(deg)=1°, resulting own frequency (f2).

To determine the energy (E2) and infinitesimal loss of energy (ΔE) of another oscillatory wave with a 1° phase shift compared to the original frequency (f1) of 5 MHz, and to find the resulting frequency (f2) of the wave, follow these steps:

Calculate the energy (E2) of the oscillatory wave with the new frequency (f2) using the Planck's energy formula.

E2=hf2

Where, h is Planck's constant ≈ 6.626 × 10 -34 J•s, f2 is the new frequency of the wave.

Calculate the change in frequency (Δf2) due to the 1° phase shift:
Δf2=(1°/360°) × f1

Where, 1° is the phase shift, 360° is the full cycle of phase.

f₁ is the original frequency, which is 5 MHz (5 × 106 Hz). Δf2=(1/360) × (5 × 106 Hz)=13,888.89 Hz

Now that you have Δf2, you can calculate the new frequency (f2):
f2=f1-Δf2

f2=(5 × 106 Hz)-(13,888.89 Hz) ≈ 4,986,111.11 Hz

So, the resulting frequency (f2) of the oscillatory wave with a 1° phase shift is approximately 4,986,111.11 Hz.

Calculate the energy (E2) using the new frequency (f2).

E2=hf2

E2 ≈ (6.626 × 10-34 J•s) × (4,986,111.11 Hz) ≈ 3.313 × 10-27 J

So, the energy (E2) of the oscillatory wave with a frequency of approximately 4,986,111.11 Hz and a 1° phase shift is also approximately 3.313 × 10-27 Joules.

To determine the infinitesimal loss of energy (ΔE) due to the phase shift, use the formula.

ΔE=hfΔt

Where, h is Planck's constant (6.626 × 10-34J•s), f2 is the new frequency (approximately) 4,986,111.11 Hz.

Δt is the infinitesimal time interval, which corresponds to the phase shift.

Known that the time shift resulting from a 1° phase shift is approximately 555 picoseconds (ps)

So, Δt=555 ps=555 × 10-12 s. Now, calculate ΔE.

ΔE=(6.626 × 10-34 J•s) × (4,986,111.11 Hz) × (555 × 10-12 s) ≈ 1.848 × 10-27 J

So, the infinitesimal loss of energy (ΔE) due to the 1° phase shift is approximately 1.848 × 10-27 Joules.
 
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Resolved, the energy (E2) of this oscillatory wave is approximately 3.313 × 10-27 Joules. Resolved, the infinitesimal loss of energy (ΔE) due to the 1° phase shift is approximately

1.848 × 10-27 Joules.

Resolved, the resulting frequency (f2) of the oscillatory wave with a 1° phase shift is approximately 4,986,111.11 Hz.

Entity descriptions

In this section, we provide detailed descriptions of essential entities central to the study of phase shift, time intervals, and frequencies. These entities are fundamental to understanding wave behaviour and its practical applications.

Phase shift entities:

Phase shift T(deg): This entity represents the angular displacement between two waveforms due to a shift in time or space, typically measured in degrees (°) or radians (rad).

Periodic waveform or signal (f1): Refers to the waveform or undergoing the phase shift analysis.

Time shift (Δt): Denotes the temporal difference or distortion between corresponding points on two waveforms, resulting from a phase shift.

Reference waveform or signal (f2, t0): Represents the original waveform or signal serving as a reference for comparison when measuring phase shift.

Time interval (T): Signifies the duration required for one complete cycle of the waveform.

Frequency (f): Denotes the number of cycles per unit time, typically measured in hertz (Hz).

Time or angle units (Δt, θ): The units used to express the phase shift, which can be either time units (e.g., seconds, Δt) or angular units (degrees, θ, or radians, θ).

Time delay (Δt): Represents the time difference introduced by the phase shift, influencing the temporal alignment of waveforms.

Frequency difference (Δf): Signifies the disparity in frequency between two waveforms undergoing phase shift.

Phase angle (Φ°): Quantifies the angular measurement that characterizes the phase shift between waveforms.

Relationship between phase shift, time interval, and frequency entities:

Time interval for 1° phase shift T(deg): Represents the time required for a 1° phase shift and is inversely proportional to frequency, playing a pivotal role in phase shift analysis.

Time distortion (Δt): Corresponds to the temporal shift induced by a 1° phase shift and is calculated based on the time interval for 1° of phase shift T(deg) and frequency (f).

Angular displacement (ΔΦ): Denotes the angular difference between corresponding points on two waveforms, providing insight into phase shift.

Wavelength and speed of propagation entities:

Wavelength (λ): Signifies the distance between two
 




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corresponding points on a waveform, a crucial parameter dependent on the speed of propagation (c) and frequency (f).

Speed of propagation (c): Represents the velocity at which the waveform propagates through a specific medium, impacting the wavelength in wave propagation.

Time distortion and infinitesimal loss of wave energy entities:

Time distortion (Δt): Quantifies the temporal shift caused by a 1° phase shift, critical in scenarios requiring precise timing and synchronization.

Infinitesimal loss of wave energy (ΔE): Denotes the minuscule reduction in wave energy due to various factors, including phase shift, with equations provided to calculate these losses.

These entity descriptions serve as the foundation for comprehending phase shift analysis, time intervals, frequency relationships, and the quantification of infinitesimal wave energy loss. They are instrumental in both theoretical analyses and practical applications involving wave phenomena, offering clarity and precision in understanding the complex behaviour of waves.

DISCUSSION

The research conducted on phase shift and infinitesimal wave energy loss equations has yielded profound insights into wave behaviour, phase analysis, and the consequences of phase shifts. This discussion section delves into the critical findings and their far-reaching implications.

Understanding phase shift

Our research has illuminated the central role of phase shift, a measure of angular displacement between waveforms, in understanding wave phenomena. Typically quantified in degrees (°) or radians (rad), phase shift analysis has emerged as a fundamental tool across multiple scientific and engineering domains. It enables researchers and engineers to precisely measure and manipulate the temporal or spatial relationship between waveforms.

The power of equations

The heart of our research lies in the development of fundamental equations that underpin phase shift analysis and energy loss calculations. The phase angle equations (Φ°=360° × f × Δt, Δt=Φ°/ (360° × f), and f=Φ°/(360° × Δt)) provide a robust framework for relating phase angle, frequency, and time delay. These equations are indispensable tools for quantifying and predicting phase shifts with accuracy.

Inversely proportional time interval

One of the pivotal findings of our research is the inverse relationship between the time interval for a 1° phase shift (T(deg)) and the frequency∝ (f) of the waveform. This discovery, encapsulated in T(deg) 1/f, underscores the critical role of frequency in determining the extent of phase shift. As frequency increases, the time interval for a 1° phase shift decreases proportionally. This insight has profound implications in fields such as telecommunications, where precise timing and synchronization are paramount.
 

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Wavelength and propagation speed

Our research underscores the significance of wavelength (λ) in understanding wave propagation. The equation λ=c/f highlights that wavelength depends on the speed of propagation (c) and frequency (f). Diverse mediums possess distinct propagation speeds, impacting the wavelength of waves as they traverse various environments. This knowledge is invaluable in comprehending phenomena such as electromagnetic wave propagation through materials with varying properties.

Time distortion and its implications

We introduce the concept of time distortion (Δt), representing the temporal shifts induced by a 1° phase shift. This concept is particularly relevant in scenarios where precise timing is critical, as exemplified in telecommunications, radar systems, and precision instruments like atomic clocks. Understanding the effects of time distortion allows for enhanced accuracy in time measurement and synchronization.

Infinitesimal wave energy loss

Our research extends to the nuanced topic of infinitesimal wave energy loss (ΔE), which can result from various factors, including phase shift. The equations ΔE=hfΔt, ΔE=(2πhf1/360) × T(deg), and ΔE=(2πh/360) × T(deg) × (1/Δt) offer a means to calculate these energy losses. This concept is indispensable in fields such as quantum mechanics, where energy transitions are fundamental to understanding the behaviour of particles and systems.

Applications in science and engineering

Phase shift analysis, as elucidated in our research, finds extensive applications across diverse scientific and engineering disciplines. From signal processing and electromagnetic wave propagation to medical imaging and quantum mechanics, the ability to quantify and manipulate phase shift is pivotal for advancing knowledge and technology. Additionally, understanding infinitesimal wave energy loss is crucial in optimizing the efficiency of systems and devices across various domains.

Our research on phase shift and infinitesimal wave energy loss equations has illuminated the fundamental principles governing wave behaviour and its practical applications. By providing a comprehensive framework for phase shift analysis and energy loss calculations, this research contributes to the advancement of scientific understanding and technological innovation in a wide array of fields. These findings have the potential to reshape how we harness the power of waves and enhance precision in a multitude of applications.

In this comprehensive exploration of phase shift and infinitesimal wave energy loss equations, our research has unveiled a of knowledge that deepens our understanding of wave behaviour and its practical applications. This concluding section summarizes the key findings and underscores the significance of our work.

Unravelling phase shift

The focal point of our research has been the elucidation of phase shift, a fundamental concept in wave phenomena. We have demonstrated that phase shift analysis, quantified in degrees (°) or radians (rad), is a versatile tool with applications spanning diverse scientific and engineering domains. Phase shift allows us
 



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to precisely measure and manipulate the relative timing or spatial displacement of waveforms, providing valuable insights into wave behaviour.

The power of equations

At the heart of our research lies a set of fundamental equations that serve as the cornerstone for phase shift analysis and energy loss calculations. The phase angle equations (Φ°=360° × f × Δt, Δt=Φ°/(360° × f), and f=Φ°/(360° × Δt)) offer a robust mathematical framework for relating phase angle, frequency, and time delay. These equations empower researchers and engineers to quantify phase shifts with precision, driving advancements in fields where precise synchronization is paramount.

Time interval and frequency

One of the pivotal revelations of our research is the inverse relationship between the time interval for a 1° phase shift T(deg) and the frequency∝ (f) of the waveform. Our findings, encapsulated in T(deg) 1/f, underscore the critical role of frequency in determining the extent of phase shift. This insight has profound implications for fields such as telecommunications, where precise timing and synchronization are foundational.

Wavelength and propagation speed

Our research has underscored the significance of wavelength (λ) in understanding wave propagation. The equation λ=c/f has revealed that wavelength depends on the speed of propagation

(c) and frequency (f). This knowledge is indispensable for comprehending wave behaviour in diverse mediums and has practical applications in fields ranging from optics to telecommunications.

Time distortion's important role

We introduced the concept of time distortion (Δt), which represents the temporal shifts induced by a 1° phase shift. This concept is particularly relevant in scenarios where precise timing is essential, such as in telecommunications, radar systems, and precision instruments like atomic clocks. Understanding the effects of time distortion enhances our ability to measure and control time with unprecedented accuracy.

Infinitesimal wave energy loss

Our research delved into the nuanced topic of infinitesimal wave

energy loss (ΔE), which can result from various factors, including phase shift. The equations ΔE=hfΔt, ΔE=(2πhf1/360) × T(deg),
 
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and ΔE=(2πh/360) × T(deg) × (1/Δt) provide a robust framework for calculating these energy losses. This concept is instrumental in fields such as quantum mechanics, where precise control of energy transitions is central to understanding the behaviour of particles and systems.

Applications across disciplines

Phase shift analysis, as elucidated in our research, finds extensive applications across diverse scientific and engineering disciplines. From signal processing and electromagnetic wave propagation to medical imaging and quantum mechanics, the ability to quantify and manipulate phase shift has far-reaching implications for advancing knowledge and technology. Additionally, understanding infinitesimal wave energy loss is crucial for optimizing the efficiency of systems and devices in various domains.

CONCLUSION

In conclusion, our research on phase shift and infinitesimal wave energy loss equations has not only enriched our understanding of wave behaviour but also facilitated the progression for innovative applications across multiple fields. These findings have the potential to reshape how we exploit the potential energy of waves, enhance precision, and drive advancements in science and technology. As we move forward, the insights gained from this research will continue to inspire new discoveries and innovations, ultimately benefiting society as a whole.

REFERENCES

1. NIST. Time and frequency from A to Z, P. 2023.

2. Thakur SN, Samal P, Bhattacharjee D. Relativistic effects on phaseshift in frequencies invalidate time dilation II. TechRxiv. 2023.

3. Urone PP. wave properties: Speed, amplitude, frequency, and period. In Physics. 2020.

4. Smith JD. Fundamentals of wave behaviour. Phys Today. 2005;58(7):42-47.

5. Boiko J, Tolubko V, Barabash O, Eromenko O, Havrylko Y. Signal processing with frequency and phase shift keying modulation in telecommunications. Telkomnika. 2019;17(4):2025-2038.

6. Eleuch H, Rotter I. Gain and loss in open quantum systems. Phys Rev E. 2017;95(6):062109.

7. Debnath SK, Park Y. Real-time quantitative phase imaging with a spatial phase-shifting algorithm. Opt Lett. 2011;36(23):4677-4679.

8. Wiesbeck W, Sit L. Radar 2020: The future of radar systems. In 2014 International Radar Conference. IEEE. 2014:1-6.
 


















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03 April 2024

Mathematical Analysis of Phase Shift and Frequency Relationship in Wave Mechanics:

This study is in reference to published research paper - 

Soumendra Nath Thakur
ORCiD: 0000-0003-1871-7803
Dated 03-Apr-2024                                                                                            

Abstract:

This study delves into the intricate interrelations among phase shift, angular frequency, and time in wave mechanics through rigorous mathematical analysis. By establishing a comprehensive framework and deriving key equations, it elucidates the dynamics of these relationships. The definition of parameter 'n' facilitates precise calculations of phase shift, while adjustments for time changes and degree representation enhance clarity. Correlations between phase shift representation in degrees and frequency deepen understanding, alongside discussions on phase shift values, time delay, and angular frequency changes. The study concludes with equations determining resulting angular and frequency changes, providing valuable insights into wave propagation dynamics.

Keywords: Phase Shift, Angular Frequency, Time, Wave Mechanics, Mathematical Analysis

Tagore's Electronic Lab, WB. India
Correspondence: 
postmasterenator@gmail.com
postmasterenator@telitnetwork.in
Declaration: 
The Author declares no conflict of interest. 

List of Sections in Mathematical Presentation:

1. Introduction to Phase Shift and Its Relation with Angular Frequency and Time
2. Adjusting Phase Shift Equation for Time Changes and Degree Representation Using Parameter 'n'
3. Correlation between Phase Shift Representation in Degrees and Frequency
4. Relationship between Phase Shift Values in Degrees and Time Delay/Time Distortion
5. Correlations between Phase Shift, Time, and Angular Frequency Changes
6. Relationship between Phase Shift, Time Distortion, and Frequency Changes
7. Determination of Resulting Angular and Frequency Changes
8. Adjustments for Phase Shift, Time, and Frequency Changes
9. Derivation of Resulting Frequency Equation
10. Equation for Resulting Frequency in Terms of Time Shift

Introduction:

Understanding the intricate relationships between phase shift and frequency is fundamental to comprehending wave mechanics. In this exploration, we delve into the nuanced interplay among phase shift, angular frequency, and time, aiming to provide a comprehensive elucidation of these crucial concepts. Through a systematic analysis and mathematical formulations, we unravel the complexities inherent in phase shift calculations and their implications for frequency alterations. By delineating the correlation between phase shift representation in degrees and frequency, we elucidate the mechanisms governing wave behaviour. Moreover, we investigate the dynamic relationship between phase shift, time distortion, and frequency changes, shedding light on the interconnected nature of these phenomena. This study endeavours to offer a robust framework for understanding phase shift and frequency dynamics, paving the way for deeper insights into wave mechanics.

Method:

Literature Review: Conduct a comprehensive review of existing literature on wave mechanics, phase shift, and frequency relationships. Identify key concepts, theories, and equations relevant to the study.

Conceptual Framework Development: Develop a conceptual framework outlining the fundamental principles of phase shift and frequency relationships in wave mechanics. Define key terms and parameters, such as phase shift, angular frequency, time delay, and frequency modulation.

Equation Derivation: Derive mathematical equations describing the relationship between phase shift, time variations, and frequency changes. Incorporate parameters such as 'n' to represent phase shift in degrees relative to a full cycle

Correlation Analysis: Analyse the correlation between phase shift representation in degrees and frequency variations. Explore how changes in phase shift affect frequency modulation and vice versa.

Simulation Studies: Conduct simulation studies using mathematical models derived from the equations to simulate various scenarios of phase shift and frequency changes. Investigate the impact of different parameters on wave propagation and frequency modulation.

Experimental Validation: Validate the derived equations and simulation results through experimental studies. Perform experiments using wave generators and measuring devices to observe phase shift, time delay, and frequency changes in real-world wave phenomena.

Data Analysis: Analyse the data collected from simulations and experiments to identify patterns, trends, and correlations between phase shift, time variations, and frequency changes. Quantify the relationship between these variables using statistical analysis techniques.

Discussion and Interpretation: Discuss the findings in the context of existing literature and theoretical frameworks. Interpret the results to gain insights into the underlying mechanisms governing phase shift and frequency relationships in wave mechanics.

Conclusion and Implications: Summarize the key findings of the study and their implications for understanding wave propagation and frequency modulation. Discuss the potential applications of the research findings in various fields, such as telecommunications, signal processing, and acoustics.

Future Research Directions: Identify areas for further research and exploration based on the limitations and gaps identified in the study. Propose potential avenues for extending the research to advance our understanding of phase shift and frequency relationships in wave mechanics.

Mathematical Presentation:

1. Introduction to Phase Shift and Its Relation with Angular Frequency and Time: 

Introduction to Phase Shift" and "Definition of Parameter 'n'. 

This presentation aims to provide a comprehensive understanding of phase shift (Φ) concerning angular frequency (ω), and time (t), along with the convenient representation of phase shift in degrees 'T(deg)'.

In wave mechanics, the phase shift in frequency 'f' is commonly denoted by the symbol 'Φ' (phi). The equation for phase shift 'Φ' for a frequency 'f' is expressed as:

Φ = ωt

Where:

• Φ (phi) represents the phase shift,

• ω (omega) denotes the angular frequency, measured in radians per unit time,

• t signifies the time.

1.1. Definition of Parameter 'n' in Phase Shift Calculations:

This definition aims to provide a comprehensive understanding of phase shift representation, incorporating the equation n =−360 + x°. 'n' serves as a parameter used to express the degree of phase shift (x°) in a manner that accounts for a full cycle (360°). It's defined as:

n = −360 + x°

Where:

• n is the parameter representing the phase shift.

• x° is the degree of phase shift, ranging from zero to a full cycle.

This equation ensures that phase shifts are properly aligned relative to a full cycle. The constant term -360 adjusts the phase shift to maintain consistency, as 360° represents one complete cycle or period.

The mathematical presentation of the definition clarifies the role of the equation:

• When the phase shift from 'x' to 'n' is −360°, and 'n' is positioned at '0' - one cycle before 'x' - then a phase shift of 'x' is 0° at the origin of the oscillation or wave.

• When 'n' is at 0° phase shift from the origin of 'x', positioned at '0' - one cycle before 'x' - then 'x' represents a phase shift of 360° of the oscillation or wave.

• When 'n' is at 90° phase shift from the origin of the oscillation or wave, then 'x' represents a phase shift of 450°.

• When 'n' is at 360° phase shift from the origin of the oscillation or wave, then 'x' represents a phase shift of 720°.

Thus, the definition ensures that 'n' properly accounts for the phase shift relative to a full cycle and maintains mathematical consistency in phase shift calculations.

Additionally, we can express the relationship between phase shift (x°), parameter 'n', and the phase shift represented in degrees (T) as follows:

x° - n = T

This expression highlights the equivalence between the phase shift represented by 'x°' and the parameter 'n', which in turn determines the phase shift 'T' in degrees.

2. Adjusting Phase Shift Equation for Time Changes and Degree Representation Using Parameter 'n':

When there is a change in time, such as a time delay or time distortion (Δt), the equation is adjusted to incorporate this change.

Φ = 360 · f · Δt

This equation represents the phase shift 'Φ' in terms of the frequency 'f' and the time shift Δt, allowing for the calculation of phase shift when there is a change in time.

Alternatively, the phase shift in frequency 'f' can be expressed in degrees using the symbol T(deg). While ω typically represents angular frequency in radians per unit time, T(deg) allows for the representation of phase shift in degrees rather than radians.

The derived equations for expected values of x° represented through 'n' in terms of 'x°', we can use the relation 'n = −360 + x°'. This equation indicates that 'n' is equal to the degree of phase shift 'x°', adjusted by a constant (-360). We can rewrite this equation to express 'x°' in terms of 'n' as follows:

x° = n + 360

Now, substituting this expression for 'x°' into the equation 'T(deg) = (x/360)T', we get:

Simplifying this equation:

T(deg) = (n/360) T + T

This equation represents the phase shift 'T(deg)' in degrees in relation to the parameter 'n', which represents the specific phase shift '(-360 + x°)' affecting the frequency change. It captures the expected values of 'x°' through the parameter 'n'.

3. Correlation between Phase Shift Representation in Degrees and Frequency:

The phase shift in frequency 'f' is conveniently represented by the symbol T(deg) to indicate phase shift in degrees. As the time interval or period (T) of the frequency (f) is represented by the expression T = 360°, T(deg) is also a representation of the degree of phase shift in T. The following expressions describe the relationship between phase shift and the degree of phase shift:

Time interval or period T = 360° 

For 1° of phase shift, T(deg) = (1/360) T

For x° of phase shift, T(deg) = (x/360) T

The numerator '1' in the equation T(deg) = (1/360) T increases linearly with the degree of phase shift, denoted as x°, which progresses as 1°, 2°, 3°... and so forth. Given that T = 1/f, for 1° of phase shift, T(deg) = (1/f) (1/360), and for x° of phase shift, T(deg) = (x/f) (1/360).

This statement elucidates the relationship between phase shift T(deg) and the degree of phase shift x for a given frequency f. It highlights the direct correlation between the numerator '1' in the equation "T(deg) = (1/360) T " and the degree of phase shift. Moreover, by substituting T = 1/f into the equation, expressions for both 1° and x° of phase shift are derived.

Since the equation T(deg) = 1/360 T can be expressed as:

T(deg) = (x/f) (1/360)

Where:

• T(deg): Represents the phase shift in degrees.

• x: Represents the degree of phase shift.

• f: Represents the frequency.

• 1/360: This term is a constant factor that converts the phase shift from radians to degrees.

• Here, x represents the ratio of the degree of phase shift to the frequency, indicating how the phase shift changes relative to the frequency.

This single equation efficiently captures both scenarios: for 1° of phase shift and for x° of phase shift.

4. Relationship between Phase Shift Values in Degrees and Time Delay/Time Distortion:

The time interval T(deg) for a 1° phase shift is inversely proportional to the frequency (f), resulting in a corresponding time shift (Δt). Utilizing the previously derived equations, we establish that for an x° phase shift, T(deg) = (x/360) T. Since T = 1/f, this equation can be expressed as T(deg) = (x/f) (1/360), or alternatively as (n/360) T + T. This relationship corresponds to the time shift (Δt). The expression is: 

T(deg) = (x/f) (1/360) = (n/360)T+T = Δt.

This presentation discusses the relationship between phase shift values represented in degrees (T(deg)) and the corresponding time delay or time distortion (Δt). It begins by highlighting that the time interval T(deg) for a 1° phase shift is inversely proportional to the frequency (f), leading to a time shift Δt. The statement then proceeds to use derived equations to express T(deg) for an x° phase shift.

Given that T = 1/f, the equation T(deg) = (x/360) T can be re-expressed as T(deg) = (x/f) (1/360), demonstrating the relationship between phase shift, frequency, and time. Additionally, it introduces the parameter 'n,' representing the specific phase shift (-360 + x°), which allows for another representation of T(deg) as (n/360) T + T. This equation showcases the relationship between phase shift values and the resulting time delay.

The concluding part of the statement reaffirms the equivalence of the two expressions for T(deg) and highlights their relationship to the time delay, denoted as Δt. Therefore, the statement clarifies how phase shift values correspond to time distortions, providing a clear understanding of their relationship.

5. Correlations between Phase Shift, Time, and Angular Frequency Changes.

From the equations discussed previously, it's evident that changes in Phase Shift (Φ) or Time (t) correspond to alterations in Angular Frequency (ω). Considering a change in angular frequencies, denoted as Δω, it reflects the difference between two angular frequencies: the original angular frequency (ω₀) and the resulting angular frequency (ω₁). Therefore, the change in angular frequency is expressed as 

Δω = (ω₀ - ω₁) 

6. Relationship between Phase Shift, Time Distortion, and Frequency Changes:

Similarly, from the previously discussed equations, it's apparent that changes in Phase Shift 'T(deg)' or Time Delay/Time Distortion (Δt) lead to adjustments in frequency (f). Now, let's examine the change in frequencies, denoted as Δf. Δf represents the disparity between two frequencies: the original frequency (f₀) and the resulting frequency (f₁). Thus, the change in frequencies is expressed as: 

Δf = (f₀ - f₁) 

7. Determination of Resulting Angular and Frequency Changes:

The resulting Angular frequency ω₁ can be determined either when the original/source Angular frequency ω₀ is known or measured, or Time (t) is known or measured.

Similarly, the resulting frequency f₁ can be determined either when the original/source frequency f₀ is known or measured, and any one of either phase shift in x° or time shift (Δt) is known or measured.

8. Adjustments for Phase Shift, Time, and Frequency Changes:

The above mentioned equations express the correlations between phase shift, time, angular frequency, and frequency changes in wave mechanics. It begins by noting that changes in phase shift (Φ) or time (t) induce alterations in angular frequency (ω) and frequency (f). The difference between two angular frequencies, namely the original (ω₀) and resulting (ω₁) frequencies, is expressed as Δω = (ω₀ - ω₁), signifying a change in angular frequency.

Similarly, adjustments in phase shift 'T(deg)' or time delay/time distortion 'Δt' lead to changes in frequency 'f'. The disparity between the original (f₀) and resulting (f₁) frequencies is represented by Δf = (f₀ - f₁), indicating a change in frequency.

Furthermore, the text discusses how the resulting angular frequency (ω₁) can be determined when the original angular frequency (ω₀) and time (t) are known. Likewise, the resulting frequency (f₁) can be determined when the original frequency (f₀) is known, along with either the phase shift in x° or the time shift (Δt).

This following equation represents the resulting angular frequency ω₁ as the original angular frequency ω₀ minus the product of the angular frequency ω and time t.

ω₁ = 2πf₀ - (ω·t) 

Breakdown of the components:

• ω₁: This represents the resulting angular frequency, which is the frequency of a wave after some change has occurred.

• 2πf₀: This term represents the original angular frequency ω₀ converted from frequency f₀ using the formula ω = 2πf. It denotes the angular frequency before any change or alteration.

• (ω•t): This term represents the product of the angular frequency ω and time t. It accounts for the change or alteration in the angular frequency due to the passage of time.

The equation describes the equation for the resulting angular frequency ω₁ in terms of the original angular frequency ω₀ and the passage of time t. 

9. Derivation of Resulting Frequency Equation:

This equation defines the resulting frequency f₁ in relation to the original frequency f₀ and the phase shift x° (in degrees).

f₁ = (f₀ - x) / {T(deg) · 360}

Breakdown of the components:

• f₁: Represents the resulting frequency, indicating the frequency of a wave post-change

• f₀: Denotes the original frequency, representing the frequency before any alteration.

• x: Signifies the degree of phase shift, indicating the extent of change in the wave's phase.

• T(deg): Represents the phase shift in degrees relative to the wave's period.

• 360: Represents one complete cycle of the wave, equivalent to 360° or 2π radians.

This equation illustrates how the resulting frequency f₁ varies with the original frequency f₀ and the degree of phase shift x°. The phase shift in degrees T(deg) adjusts the frequency, considering the extent of phase shift relative to the wave's period. Overall, the equation effectively captures the interplay between phase shift, frequency, and the resulting frequency following a change.

10. Equation for Resulting Frequency in Terms of Time Shift:

This equation represents the resulting frequency f₁ in terms of the time shift Δt.

f₁ = 1/(Δt×360)

Breakdown of the components:

• f₁: Represents the resulting frequency, which is the frequency of a wave after some change has occurred

• Δt: Represents the time shift, also known as time distortion. It is the difference in time between the original wave and the resulting wave, causing a change in frequency. When Δt is positive, it implies a delay in time, leading to a decrease in frequency. Conversely, when 

• Δt is negative, it signifies an advancement in time, resulting in an increase in frequency.

Therefore, the equation f₁ = 1/(Δt×360) succinctly expresses how the resulting frequency f₁ is determined by the reciprocal of the product of the time shift Δt and 360. This equation captures the relationship between frequency changes and time shifts in the context of wave mechanics, providing a mathematically consistent representation.

Discussion:

The study provides a comprehensive exploration of phase shift and frequency relationships within the context of wave mechanics. It delves into various mathematical equations, derivations, and concepts to elucidate the intricate connections between phase shift, time, angular frequency, and frequency changes. Here, we discuss key points and insights drawn from the study:

Definition of Phase Shift and Parameter 'n': The presentation begins by defining phase shift (Φ) in terms of angular frequency (ω) and time (t). It introduces parameter 'n' as a numerical value representing the degree of phase shift, ensuring consistency in calculations and interpretations. The inclusion of 'n' facilitates a clear understanding of phase shift relative to a full cycle, enhancing mathematical precision.

Adjustments for Time Changes and Degree Representation: The text explores adjustments to the phase shift equation to incorporate time changes, such as time delay or distortion. It demonstrates how phase shift can be represented in degrees using parameter 'n', allowing for convenient interpretation and calculation. The derived equations provide a systematic approach to account for time variations and their effects on phase shift.

Correlation between Phase Shift and Frequency: A significant aspect discussed is the correlation between phase shift representation in degrees T(deg) and frequency. By expressing phase shift in degrees, the text establishes a direct relationship between phase shift values and the degree of phase shift for a given frequency. This correlation aids in understanding how changes in phase shift impact frequency alterations.

Relationship with Time Delay and Frequency Changes: The presentation elucidates the relationship between phase shift values in degrees and time delay or distortion. It demonstrates how variations in phase shift correspond to changes in frequency, highlighting the inverse proportionality between time interval and frequency for a given phase shift. This relationship provides valuable insights into the dynamic nature of wave phenomena.

Derivation of Resulting Frequency Equation: A key highlight is the derivation of the resulting frequency equation, which relates the original frequency, phase shift, and period of the wave. The equation captures the interplay between these factors, offering a concise representation of how frequency changes following a phase shift. This derivation enhances understanding of frequency modulation in wave propagation.

Equation for Resulting Frequency in Terms of Time Shift: Finally, the presentation introduces an equation for the resulting frequency in terms of time shift. This equation provides a mathematical framework for analysing frequency changes resulting from time distortions, further enriching the understanding of wave dynamics.

The discussed study offers a rigorous mathematical treatment of phase shift and frequency relationships, shedding light on fundamental principles underlying wave mechanics. By exploring the intricacies of phase shift, time variations, and frequency alterations, the presentation contributes to a deeper understanding of wave phenomena and their mathematical representations.

Conclusion:

In conclusion, the comprehensive discussion on phase shift and frequency relationships presented in the quoted text offers valuable insights into the mathematical foundations of wave mechanics. Through meticulous exploration and derivation of equations, the text illuminates the intricate interplay between phase shift, time variations, and frequency changes. By defining parameters, adjusting equations, and deriving relationships, it provides a systematic framework for understanding how phase shift influences frequency modulation and vice versa.

The introduction of parameter 'n' facilitates consistent and precise calculations, ensuring accurate representation of phase shift relative to a full cycle. This parameterization enhances the interpretability of phase shift in degrees, enabling convenient analysis of wave phenomena. Furthermore, the correlation between phase shift representation in degrees and frequency deepens our understanding of their dynamic relationship, elucidating how changes in phase shift impact frequency alterations.

The derivation of resulting frequency equations and expressions for frequency changes in terms of time shift enriches our understanding of wave dynamics, offering mathematical tools for analysing frequency modulation. These equations capture the complex interactions between phase shift, time distortions, and frequency variations, providing a comprehensive framework for studying wave propagation.

Overall, the discussion presented in the quoted text contributes significantly to the field of wave mechanics by providing a rigorous mathematical treatment of phase shift and frequency relationships. By elucidating fundamental principles and deriving key equations, it advances our understanding of wave phenomena and lays the groundwork for further research in this domain.

References:

[1] Thakur, S. N., & Bhattacharjee, D. (2023a). Phase shift and infinitesimal wave energy loss equations. ResearchGate. https://www.researchgate.net/publication/378462690_Phase_Shift_and_Infinitesimal_Wave_Energy_Loss_Equations

[2] Thakur, S. N. (2023j). Wave Dynamics -Interplay of phase, frequency, time, and energy. ResearchGate. https://doi.org/10.13140/RG.2.2.16473.70242

[3] Thakur, S. N. (2023j). Decoding Time Dynamics: The Crucial Role of Phase Shift Measurement amidst Relativistic & Non-Relativistic Influences. Qeios. https://doi.org/10.32388/mrwnvv

[4] Thakur, S. N., Samal, P., & Bhattacharjee, D. (2023d). Relativistic effects on phaseshift in frequencies invalidate time dilation II. TechRxiv. https://doi.org/10.36227/techrxiv.22492066.v2

[5] Thakur, S. N. (2023d). Redshift and its Equations in Electromagnetic Waves. ResearchGate. https://doi.org/10.13140/RG.2.2.33004.54403

[6] Thakur, S. N. (2024h). Relationships made easy: Time Intervals, Phase Shifts, and Frequency in Waveforms. ResearchGate. https://doi.org/10.13140/RG.2.2.11835.02088

 


02 April 2024

Why the relativistic interpretation of photon energy is inadequate and incomplete?:

When a photon undergoes transformation:

The incident photon hits the mirror's surface at the speed of light (c) and its speed is reduced upon impact.

The electron absorbs the photon, converting its energy, leading to absorption loss and subsequent remission.

This absorption and re-emission process repeats, resulting in accumulated absorption loss.

This leads to infinitesimal changes in energy, frequency, and time delay.

The re-emitted photon has less energy than the incident photon at c.

However, relativistic reflection overlooks this phenomenon and assumes the photon maintains a constant speed of c throughout the reflection process.

Relativity does not consider photon energy but assumes constant speed, even in dense transparent mediums where refraction occurs.

Relativity ignores photon interactions within external gravitational fields, failing to recognize that curved spacetime is not necessary for gravitational lensing.

There is doubt whether the presenter intended to suppress Newtonian mechanics and Planck's equations to protect the relativistic interpretation of time and curved spacetime.

#PhotonMirrorIntercation

01 April 2024

Question: Is it possible for a second and more time dimensions to exist?

The questioner further explained his question: "Finding out that string theory and such is all about increasing the spatial dimension, is there a temporal dimension?"

My answer is, "In short, one thing is certain, regardless of the spatial dimension or hyper-dimension, the temporal dimension or time dimension is always placed above the event dimension. In addition, placing temporal dimensions within event dimensions would cause serious inconsistencies. Furthermore, I do not find the concept of multiple dimensions plausible. I found this answer in my research efforts."

Best regards
Soumendra Nath Thakur

Question: "When a photon is reflected by a mirror, does its own time changes?"

Question is further explained by the questioner, "When a photon is reflected by a mirror, does its own time changes? I believe that Einstein did not explain everything in his theories. So there are still many fundamental things to discover. For example, we can arrive at a new formula expressing the dilation of time..."

Following is my answer to the question: Yes, it does.

Photons interact with electrons within a medium, resulting in absorption, excitation, and subsequent re-emission or scattering. When photons are absorbed by electrons on the surface of a mirror, the process involves the conversion of photon energy into electron energy, causing the electrons to move to higher energy levels and become unstable. As a result, the electrons re-emit photons. These interactions contribute to absorption loss. The absorption, excitation, and subsequent re-emission of photons lead to a loss of photon energy. The difference in energy between incident and reflecting photons corresponds to a time delay Δt, where Δf represents the change in frequency between incident and reflecting photons. The equations for these processes are expressed as follows:

ΔE = γᵢ − γᵣ = hΔf, 

where Δf is the change in frequency between incident and reflecting photons.

Δt = (1/Δf)/360, 

where Δf corresponds to the infinitesimal time delay Δt during reflection.

 
The reasons why Einstein may not have mentioned this phenomenon could be attributed to several factors. 

Firstly, Einstein primarily focused on gravitational phenomena and their effects on spacetime in his work on general relativity, rather than delving into the intricate details of photon interactions with matter. 

During Einstein's time, the understanding of quantum mechanics, including the behaviour of photons and their interactions with electrons, was still in its early stages. The concept of absorption, excitation, and re-emission of photons by electrons on a mirror's surface may not have been well-established or widely recognized at that time. 

Additionally, Einstein's approach to physics was often conceptual and theoretical, with a focus on developing overarching principles rather than on specific experimental or observational details. 

Therefore, it's possible that Einstein either did not notice these photon-electron interactions or did not consider them relevant to his theories of general relativity. 

Regarding the Planck's equation, while Einstein was aware of Planck's work on quantum mechanics, the direct application of Planck's equation to the phenomenon of photon interactions with matter may not have been explicitly relevant to Einstein's gravitational lensing theory at the time. 

Therefore, it's uncertain whether Einstein intentionally ignored Planck's equation for the purpose of preserving gravitational lensing theory from challenges.

Regards,
Soumendra Nath Thakur