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Photonic Quantum Computing
Time-reversed two-photon interferometry for phase super-resolution
arXiv
Authors: Kazuhisa Ogawa, Shuhei Tamate, Hirokazu Kobayashi, Toshihiro Nakanishi, Masao Kitano
Year
2013
Paper ID
31830
Status
Preprint
Abstract Read
~2 min
Abstract Words
78
Citations
N/A
Abstract
We observed two-photon phase super-resolution in an unbalanced Michelson interferometer with classical Gaussian laser pulses. Our work is a time-reversed version of a two-photon interference experiment using an unbalanced Michelson interferometer. A measured interferogram exhibits two-photon phase super-resolution with a high visibility of 97.9% \pm 0.4%. Its coherence length is about 22 times longer than that of the input laser pulses. It is a classical analogue to the large difference between the one- and two-photon coherence lengths of entangled photon pairs.
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- This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
- It adds a 2013 reference point for readers tracking recent quantum research.
- We observed two-photon phase super-resolution in an unbalanced Michelson interferometer with classical Gaussian laser pulses.
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