In the delayed choice experiment, isn't it possible to determine which
branch path a photon went by measuring the change of momentum of
the photon when it reflects off of one of the two full-silvered mirrors?

                               [ Detector ]
                                       |
                                       |
                      //------------/       [ Detector ]
                       |               |
                       |               |
                       |               |
  [ Laser ]-------/------------//

The reflection should produce a measurable force on one or the other
mirror, right?  If so, then the photon can not interfere with itself, right?

Last edited by alex (2006-03-18 18:48:15)