My best guess is that the slide is just wrong. I can’t think of any reason for each photon to interfere only with itself under those conditions.
Photons certainly can all amplitude-add with each other in principle. That’s how a laser works in the first place.
Any physicists want to chime in?
See also e.g. Wikipedia on Identical Particles, though rest assured, I’m not getting all my information from Wikipedia.
My best guess is that the slide is just wrong. I can’t think of any reason for each photon to interfere only with itself under those conditions.
Photons certainly can all amplitude-add with each other in principle. That’s how a laser works in the first place.
Any physicists want to chime in?
See also e.g. Wikipedia on Identical Particles, though rest assured, I’m not getting all my information from Wikipedia.