It appears thta SelfAdjoint is suggesting that the photon accumulates no proper time (its own elapsed time) from the prediction of Relativity - this is clear as the it is traveling at the speed of light but of course it is traveling through a vacuum and will 'relatively' take time to travel...
Thanks ZapperZ - I have looked at your link in another question: http://www.optica.tn.tudelft.nl/education/photons.asp
Are the patterns in this real experimental results?
(The approximations I meant were wavy lines - hope this makes sense.)
Does anyone have an answer to the above two questions? Please let me know if anyone has answered them previously but it appears as if they have not been answered...?
The below quote (from selfAdjoint) does not make sense (perhaps?) - surely if a single photon travels through a quantum vacuum it will take a certain amount of time to travel.
selfAdjoint: A photon crossing the vacuum has no time to interact with anything, because its proper time is zero...
(TeV) Thanks for your entry and explanation about two photons being able to create a real pair (particle and anti-particle).
Can anyone also explain whether it is possible for a single photon in a quantum vacuum to react with a temporary virtual/real pair (either with the particle or...
Explain how a photn interacts with quantum vacuum
Can someone explain in full how a photon will interact with a quantum vacuum. The previous entries do not explain how 'exactly' a photon will 'interact' to become a virtual (electron-positron) pair.
Can someone explain this please.
Does...