Gravitational Lensing is due to gain of momentum of the photon, not for wrapped spacetime:

Summary: A photon exchanges momentum as it bypasses a large gravitational well during transit. The photon experiences a change in momentum and its path is bent as it interacts with the gravitational field. A photon simultaneously gains and loses momentum (p) from a gravitational interaction with a massive object. However, a photon maintains its relative path with speed c and covers the same distance (d) as compared to its constant speed. The curvature of the photon's path is understood in terms of the exchange of momentum experienced by the photon.

You've probably asked the question, "What bends light?" or, “What makes a light source bigger?

1. However, your question is about "gravitational lensing" that bends light and makes the source appear larger, from light that comes from a single star or an entire galaxy..

2. In fact gravitational lensing itself implies that it is a phenomenon of gravitational interaction with light. But relativity misrepresents that such gravitational lensing is due to bent or warped spacetime. However, it should be field interaction. You can see my contention here in my post.

3. Also, I will give an accurate representation of space and time in light of gravitational lensing, that is, the interaction between the gravitational field of matter and the field of electromagnetic photons, and nothing to do with warped space-time.

4. Gravitational-electromagnetic field interaction between the above-mentioned gravitating object and the light photon - which acquires the temporary energy of the photon by increasing the momentum energy of the photon.

5. A photon does not retain newly acquired momentum energy other than its own energy acquired from its source.

6. So the photon releases its newly acquired momentum energy in the form of expended momentum.

7. Accordingly, the photon follows a curved path while maintaining a constant linear-path relative to the moving curved path.

8. The photon simultaneously gains and releases momentum energy until it escapes the gravitational influence of the gravitating object and then maintains its own linear path at the end of its interaction.

9. So the conclusion is, the photon path is not curved for bent or warped spacetime, rather, the photon path is bent during field interaction with another gravitating object, due to the temporary gain of its momentum energy on the way to its destination. Space, time or spacetime are not natural but energy fields are natural, and they act on events to invoke conceptual time.

Note: The momentum of a photon is directly proportional to its frequency and inversely proportional to its wavelength. If the wavelength of a photon is known, its momentum can be calculated using the formula 𝑝 = ℎ 𝜆 . If the frequency of a photon is known, its momentum can be calculated using the formula 𝑝 = ℎ 𝑓 𝑐 .

Photons have momentum, given by p=hλ, where λ is the photon wavelength. Photon energy and momentum are related by p=Ec, where E=hf=hc/λ for a photon

#Gravitationallensing #space #time #GravitationalInteraction #electromagneticinteraction #fieldsinteraction #momentum