Single- photon interference with thermally excited three - level cascade atoms

Abstract EN

A theoretical model is presented for a single – photon interference experiment in a beam - splitter using the second photon in a cascade transition of a three – level atomic system.

A clear ant correlation effect is found in the coincidences of photons on the two sides of the beam splitter that can only be explained by quantum theory of light .

A qualitative comparison is made with an earlier single – photon interference experiment available in literature