I have read this question:
The underlying spacetime interval is zero, that means that the particle properties of the photon - in particular the momentum - are transmitted directly from the electron which is emitting the photon to the electron which is absorbing the photon.
Now I have this setup:
In this setup, the emission and absorption should be separated by a spacetime distance of 0, thus based on the description, the momentum between the emitting and absorbing atom (object) should be transferred directly.
But, the mirrors in between receive something called radiation pressure, that is, the light puts pressure on both mirrors in the way.
Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.
To clarify, by directly, I mean that the light (photons) transfer causality between the emitter and absorber, and they do it without any change in its (the lights'/photons') momentum in between.
- Does light (photons) really transfer momentum directly between emission and absorption?