- #1
JerryY
- 14
- 1
Quantum mechanically speaking when we split a wave in two the resulting waves must have a 90 degrees phase difference for energy to be conserved. Take the beamsplitter depicted in [1] for example. But the Fresnel equations state that the reflected wave should experience a phase shift of π when reflecting from an optically less dense medium. This results in a π phase difference between the two resulting waves which apparently violates conservation of energy. I tried asking this in other forums but received no answers so I'm guessing I fundamentally misunderstood something.
[1] G. Weihs and A. Zeilinger, “Photon statistics at beam-splitters: an essential tool in quantum information and teleportation,” in Coherence and Statistics of Photons and Atoms, J. Perina, ed. (Wiley, New York, NY, 2001)
[1] G. Weihs and A. Zeilinger, “Photon statistics at beam-splitters: an essential tool in quantum information and teleportation,” in Coherence and Statistics of Photons and Atoms, J. Perina, ed. (Wiley, New York, NY, 2001)