Indistinguishable photon pairs from independent true chaotic sources

Amir Nevet*, Alex Hayat, Pavel Ginzburg, Meir Orenstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Indistinguishability of events in quantum mechanics is manifested by interference between their probability amplitudes. We report a unique kind of interference occurring between indistinguishable events of photon-pair emission, where each photon of the pair is emitted from a distinct true chaotic light source and has a different energy. The indistinguishability results in an interference which is observed as an ultrafast modulation of the second-order coherence function, measured on a femtosecond time scale by two-photon absorption in a semiconductor photomultiplier tube.

Original languageEnglish
Article number253601
JournalPhysical Review Letters
Issue number25
StatePublished - 16 Dec 2011
Externally publishedYes


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