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Cited by 1,135Quantum Information and CryptographyQuantum optics and atomic interactionsQuantum Mechanics and Applications

Spin squeezing and reduced quantum noise in spectroscopy

Wineland, D. J., Bollinger, J. J., Itano, W. M., Moore, F. L., Heinzen, D. J.·1992·Physical Review A
DOI 10.1103/physreva.46.r6797
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Abstract

We investigate the quantum-mechanical noise in spectroscopic experiments on ensembles of N two-level (or spin-1/2) systems where transitions are detected by measuring changes in state population. By preparing correlated states, here called squeezed spin states, we can increase the signal-to-noise ratio in spectroscopy (by approximately ${\mathit{N}}^{1/2}$ in certain cases) over that found in experiments using uncorrelated states. Possible experimental demonstrations of this enhancement are discussed.

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Crossref · 10.1103/physreva.46.r6797

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  • Two atomic systems can be combined in alternate configurations to decrease QPN.

    “Beyond reducing Dick noise, two atomic systems can also be combined in alternate configurations to decrease QPN.”

    From Ultrastable optical clock with two cold-atom ensembles (2017) · cites this paper as [28]

  • Recent proposals use one system in a succession of short interrogation periods to prestabilize the OLO such that a second system can then be interrogated over a longer period than the OLO coherence would otherwise permit.

    “Recent proposals use one system in a succession of short interrogation periods to prestabilize the OLO such that a second system can then be interrogated over a longer period than the OLO coherence would otherwise permit 27,28 .”

    From Ultrastable optical clock with two cold-atom ensembles (2017) · cites this paper as [28]

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Related

Authors
Wineland, D. J., Bollinger, J. J., Itano, W. M., Moore, F. L., & Heinzen, D. J.
Affiliations
National Institute of Standards and Technology (US)
ORCID
Venue
Physical Review A
Publisher
American Physical Society (APS)
Published
1992-12-01
Volume
46
Issue
11
Pages
R6797-R6800
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
DOI
10.1103/physreva.46.r6797
OpenAlex
W1981935016
Cited by
1,135
References
28
Citations by year
2026: 42 · 2025: 72 · 2024: 67 · 2023: 83 · 2022: 53 · 2021: 64 · 2020: 63 · 2019: 84 · 2018: 32 · 2017: 50 · 2016: 57 · 2015: 36 · 2014: 47 · 2013: 41 · 2012: 47
FWCI
5.78
Type
journal article
Language
en
Open access
closed
Licence
link.aps.org/licenses/aps-default-license (vor)
Locations
  • Physical Review A (publishedVersion)
  • PubMed (publishedVersion)
  • Physical Review Letters
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
Keywords
spin squeezing, quantum noise, spectroscopy, two-level system, signal-to-noise ratio, correlated states, population measurement, quantum-enhanced sensing

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