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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 8 — Aug. 1, 2008
  • pp: 1336–1340

Use of maximally entangled N-photon states for practical quantum interferometry

Gerald Gilbert, Michael Hamrick, and Yaakov S. Weinstein  »View Author Affiliations


JOSA B, Vol. 25, Issue 8, pp. 1336-1340 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001336


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Abstract

The phase estimation performance of photonic N00N states propagating in an attenuating medium is analyzed. It is shown that the Heisenberg limit is never achieved and that an attenuated separable state of N photons will actually produce a better phase estimate than an equally attenuated N00N state unless the transmittance of the medium is sufficiently high. Thus, for most practical applications with realistic attenuation, N00N-state-based phase estimation actually performs worse than the standard quantum limit. This performance deficit becomes more pronounced as the number of photons in the signal increases.

© 2008 Optical Society of America

OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: December 7, 2007
Revised Manuscript: May 13, 2008
Manuscript Accepted: May 23, 2008
Published: July 29, 2008

Citation
Gerald Gilbert, Michael Hamrick, and Yaakov S. Weinstein, "Use of maximally entangled N-photon states for practical quantum interferometry," J. Opt. Soc. Am. B 25, 1336-1340 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-8-1336

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