PHOTONIC DE-BROGLIE WAVE INTERFEROMETERS

In the recently proposed photonic de Broglie wave interferometer, soph isticated beam splitters are used to split the de Broglie wave of a se t of photons. The photonic de Broglie or collective phase shift can, h owever, be found in conventional interferometry if the full photon sta tistics are recorded. We propose a variation of the original photonic de Broglie wave interferometer. We show that the collective phase shif t can and has been found in interferometry using photon pairs and prop ose two new photonic de Broglie wave interferometers in which normal b eam splitters are used. Both of these rely on conditioning to select t he cases for which all the photons behave as a single object.