Classical analogues of two-photon quantum interference

Details Classical analogues of two-photon quantum interference Classical analogues of two-photon quantum interference

2009-09-04

arxiv.org/abs/0909.0792v1

Phys. Rev. Lett. 102, 243601 (2009)

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.102.243601

Chirped-pulse interferometry (CPI) captures the metrological advantages of quantum Hong-Ou-Mandel (HOM) interferometry in a completely classical system. Modified HOM interferometers are the basis for a number of seminal quantum-interference effects. Here, the corresponding modifications to CPI allow for the first observation of classical analogues to the HOM peak and quantum beating. They also allow a new classical technique for generating phase super-resolution exhibiting a coherence length dramatically longer than that of the laser light, analogous to increased two-photon coherence lengths in entangled states.

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