Why do photons not experience time?

[berkeman]

This is bullying, not nessecary and not science

No, no, it's not meant as bullying at all. Over the years at PF we have come to understand how important it is to tune the level of responses to the level of understanding of the OP asking the question. That is why in many of our technical PF forums we use the prefix system on the thread title, to better help responders know how to respond to the OP's question.

 

[Vanadium 50]

This is bullying, not nessecary and not science

OK, so what level do you want an answer? Graduate level texts have been suggested. Is this an adequate answer? If not, what do you want instead?

Lack of mental telepathy is not the same as bullying.

 

[rolnor]

I am grateful for all answers that help me understand this matter. One comment seemed unecessary. Maybe I missinterpreted the intention.

 

[rolnor]

It's not ignorance! It's just that relativistic QFT is a quite difficult subject, and it's impossible to understand it without the adequate math. In addition it's also not fully established from a strict mathematical point of view. It needs time to learn all this. For me the most concise introductory treatment is given in

S. Coleman, Lectures of Sidney Coleman on Quantum Field
Theory, World Scientific Publishing Co. Pte. Ltd., Hackensack
(2018), https://doi.org/10.1142/9371

Large parts of this book is also freely available from the arXiv:

https://arxiv.org/abs/1110.5013

More details, particularly the emphasis of the importance of the microcausality constraints can be found in the 3-volume textbook series by Weinberg, Quantum Theory of Fields.

Complementary to that is

A. Duncan, The conceptual framework of quantum field
theory, Oxford University Press, Oxford (2012).

Thanx a lot now I have some reading to do.