Heisenberg limited Sagnac interferometry

Aziz Kolkiran; G S Agarwal

doi:10.1364/OE.15.006798

Heisenberg limited Sagnac interferometry

Quantum Physics 2009-11-13 v1

Authors: Aziz Kolkiran , G S Agarwal

Journal reference: Optics Express 15, 6798 (2007)

Comments: 11 pages, 5 figures

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Abstract

We show how the entangled photons produced in parametric down conversion can be used to improve the sensitivity of a Sagnac interferometer. Two-photon and four-photon coincidences increases the sensitivity by a factor of two and four respectively. Our results apply to sources with arbitrary pumping and squeezing parameters.

Keywords

spontaneous parametric down-conversion quantum optics

Cite

@article{arxiv.0705.2468,
  title  = {Heisenberg limited Sagnac interferometry},
  author = {Aziz Kolkiran and G S Agarwal},
  journal= {arXiv preprint arXiv:0705.2468},
  year   = {2009}
}

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