Abstract
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 language | English |
|---|---|
| Article number | 253601 |
| Journal | Physical Review Letters |
| Volume | 107 |
| Issue number | 25 |
| DOIs | |
| State | Published - 16 Dec 2011 |
| Externally published | Yes |