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Title: Nonlocal polarization interferometer for entanglement detection

Abstract

We report a nonlocal interferometer capable of detecting entanglement and identifying Bell states statistically. This is possible due to the interferometer's unique correlation dependence on the antidiagonal elements of the density matrix, which have distinct bounds for separable states and unique values for the four Bell states. The interferometer consists of two spatially separated balanced Mach-Zehnder or Sagnac interferometers that share a polarization-entangled source. Correlations between these interferometers exhibit nonlocal interference, while single-photon interference is suppressed. This interferometer also allows for a unique version of the Clauser-Horne-Shimony-Holt Bell test where the local reality is the photon polarization. In conclusion, we present the relevant theory and experimental results.

Authors:
 [1];  [2];  [2]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1185636
Alternate Identifier(s):
OSTI ID: 1179658
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A - Atomic, Molecular, and Optical Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 4; Journal ID: ISSN 1050-2947
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; quantum information; quantum sensing; quantum optics

Citation Formats

Williams, Brian P., Humble, Travis S., and Grice, Warren P. Nonlocal polarization interferometer for entanglement detection. United States: N. p., 2014. Web. doi:10.1103/PhysRevA.90.042121.
Williams, Brian P., Humble, Travis S., & Grice, Warren P. Nonlocal polarization interferometer for entanglement detection. United States. https://doi.org/10.1103/PhysRevA.90.042121
Williams, Brian P., Humble, Travis S., and Grice, Warren P. Thu . "Nonlocal polarization interferometer for entanglement detection". United States. https://doi.org/10.1103/PhysRevA.90.042121. https://www.osti.gov/servlets/purl/1185636.
@article{osti_1185636,
title = {Nonlocal polarization interferometer for entanglement detection},
author = {Williams, Brian P. and Humble, Travis S. and Grice, Warren P.},
abstractNote = {We report a nonlocal interferometer capable of detecting entanglement and identifying Bell states statistically. This is possible due to the interferometer's unique correlation dependence on the antidiagonal elements of the density matrix, which have distinct bounds for separable states and unique values for the four Bell states. The interferometer consists of two spatially separated balanced Mach-Zehnder or Sagnac interferometers that share a polarization-entangled source. Correlations between these interferometers exhibit nonlocal interference, while single-photon interference is suppressed. This interferometer also allows for a unique version of the Clauser-Horne-Shimony-Holt Bell test where the local reality is the photon polarization. In conclusion, we present the relevant theory and experimental results.},
doi = {10.1103/PhysRevA.90.042121},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
number = 4,
volume = 90,
place = {United States},
year = {Thu Oct 30 00:00:00 EDT 2014},
month = {Thu Oct 30 00:00:00 EDT 2014}
}

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Cited by: 3 works
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