Tag: refractive index

  • What do we know about photon? (light)

    What do we know about photon? (light)

    I should at some time try to be a little more comprehensive than what will follow, I have elsewhere said how photon is very special: zero mass, vector spin state, fastest particle, force carrier of electromagnetic force — actually Maxwell waves and so on. We can not talk about the position of the photon in…