Heisenberg limited Sagnac interferometry

Heisenberg limited Sagnac interferometry

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...

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Veröffentlicht in:arXiv.org 2007-05
Hauptverfasser: Aziz Kolkiran, Agarwal, G S
Format: Artikel
Sprache:eng
Schlagworte:
Parameter sensitivity
Photons
Physics - Quantum Physics
Quantum theory
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Zusammenfassung: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0705.2468