Dispersion cancellation with phase-sensitive Gaussian-state light
Name
Shapiro-2010-Dispersion cancellation with phase-sensitive Gaussian-state light.pdf
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209.05 KB
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Author(s)
Shapiro, Jeffrey H.
Date Issued
February 2010
Journal
Physical Review A
Publisher
American Physical Society
Citation
Shapiro, Jeffrey H. “Dispersion cancellation with phase-sensitive Gaussian-state light.” Physical Review A 81.2 (2010): 023824. © 2010 The American Physical Society
Version
Final published version
Abstract
Franson’s paradigm for nonlocal dispersion cancellation [J. D. Franson, Phys. Rev. A 45, 3126 (1992)] is studied using two kinds of jointly Gaussian-state signal and reference beams with phase-sensitive cross correlations. The first joint signal-reference state is nonclassical, with a phase-sensitive cross correlation that is at the ultimate quantum-mechanical limit. It models the outputs obtained from continuous-wave spontaneous parametric down-conversion. The second joint signal-reference state is classical—it has a proper P representation—with a phase-sensitive cross correlation that is at the limit set by classical physics. Using these states we show that a version of Franson’s nonlocal dispersion cancellation configuration has essentially identical quantum and classical explanations except for the contrast obtained, which is much higher in the quantum case than it is in the classical case. This work bears on Franson’s recent article [J. D. Franson, Phys. Rev. A 80, 032119 (2009)], which asserts that there is no classical explanation for all the features seen in quantum nonlocal dispersion cancellation.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.81.023824
