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Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit

Open access
Anisimov, Petr M., Raterman, Gretchen M., Chiruvelli, Aravind, Plick, William N., Huver, Sean D., Lee, Hwang, Dowling, Jonathan P.·2010·Physical Review Letters

Abstract

We study the sensitivity and resolution of phase measurement in a Mach-Zehnder interferometer with two-mode squeezed vacuum (n photons on average). We show that superresolution and sub-Heisenberg sensitivity is obtained with parity detection. In particular, in our setup, dependence of the signal on the phase evolves n times faster than in traditional schemes, and uncertainty in the phase estimation is better than 1/n, and we saturate the quantum Cramer-Rao bound.

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Metadata

Authors
Anisimov, P. M., Raterman, G. M., Chiruvelli, A., Plick, W. N., Huver, S. D., Lee, H., & Dowling, J. P.
Venue
Physical Review Letters
Published
2010-03-12
Volume
104
Issue
10
Pages
103602-103602
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2033225070
Cited by
449
References
5
FWCI
18.70
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit. https://app.cochat.ai/papers/10.1103/physrevlett.104.103602
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Anisimov, P. M., Raterman, G. M., Chiruvelli, A., Plick, W. N., Huver, S. D., Lee, H., & Dowling, J. P. (2010). Quantum Metrology with Two-Mode Squeezed Vacuum: Parity Detection Beats the Heisenberg Limit. Physical Review Letters. https://doi.org/10.1103/physrevlett.104.103602

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