Macroscopic Hong-Ou-Mandel interference

Timur Sh. Iskhakov; Kirill Yu. Spasibko; Maria V. Chekhova; Gerd Leuchs

doi:10.1088/1367-2630/15/9/093036

Macroscopic Hong-Ou-Mandel interference

Quantum Physics 2015-06-11 v2 Optics

Authors: Timur Sh. Iskhakov , Kirill Yu. Spasibko , Maria V. Chekhova , Gerd Leuchs

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Abstract

We report on a Hong-Ou-Mandel (HOM) interference experiment for quantum states with photon numbers per mode as large as 10^6 generated via high-gain parametric down conversion (PDC). The standard technique of coincidence counting leads in this case to a dip with a very low visibility. By measuring, instead of coincidence rate, the variance of the photon-number difference, we observe a peak with 99.99% visibility. From the shape of the peak, one can infer information about the temporal mode structure of the PDC radiation, including the degree of frequency/time entanglement.

Keywords

hong-ou-mandel interference quantum optics

Cite

@article{arxiv.1210.4575,
  title  = {Macroscopic Hong-Ou-Mandel interference},
  author = {Timur Sh. Iskhakov and Kirill Yu. Spasibko and Maria V. Chekhova and Gerd Leuchs},
  journal= {arXiv preprint arXiv:1210.4575},
  year   = {2015}
}

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5 pages, 3 figures

Macroscopic Hong-Ou-Mandel interference

Abstract

Keywords

Cite

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