DOI: 10.1126/science.1095374. Real-Time Quantum Feedback Control of Atomic Spin-Squeezing

Real-Time Quantum Feedback Control of Atomic Spin-Squeezing

10.1126/science.1095374

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Real-time feedback performed during a quantum nondemolition measurement of atomic spin-angular momentum allowed us to influence the quantum statistics of the measurement outcome. We showed that it is possible to harness measurement backaction as a form of actuation in quantum control, and thus we describe a valuable tool for quantum information science. Our feedback-mediated procedure generates spin-squeezing, for which the reduction in quantum uncertainty and resulting atomic entanglement are not conditioned on the measurement outcome.

Bibliography

Geremia, J., Stockton, J. K., & Mabuchi, H. (2004). Real-Time Quantum Feedback Control of Atomic Spin-Squeezing. Science, 304(5668), 270â273.

Authors 3

JM Geremia (first)
John K. Stockton (additional)
Hideo Mabuchi (additional)

References 18 Referenced 225

10.1103/PhysRevA.47.5138
J. Geremia, J. K. Stockton, A. C. Doherty, H. Mabuchi, Phys. Rev. Lett.91, 250801 (2003). (10.1103/PhysRevLett.91.250801) / Phys. Rev. Lett. (2003)
J. K. Stockton J. Geremia A. C. Doherty H. Mabuchi www.arXiv.org/quant-ph/0309101.
10.1103/PhysRevA.50.67
D. Oblak et al. www.arXiv.org/quant-ph/0312165.
A. Sørensen, K. Mølmer, Phys. Rev. Lett.86, 4431 (2001). (10.1103/PhysRevLett.86.4431) / Phys. Rev. Lett. (2001)
10.1103/PhysRevLett.83.1319
K. Hammerer K. Mølmer E. Polzik J. Cirac. www.arXiv.org/quant-ph/0312156.
M. Brune, S. Haroche, V. Lefevre, J. M. Raimond, N. Zagury, Phys. Rev. Lett.65, 976 (1990). (10.1103/PhysRevLett.65.976) / Phys. Rev. Lett. (1990)
10.1103/PhysRevLett.85.1594
10.1038/35096524
L. K. Thomsen, S. Mancini, H. M. Wiseman, Phys. Rev. A65, 061801 (2002). (10.1103/PhysRevA.65.061801) / Phys. Rev. A (2002)
A. Silberfarb, I. H. Deutsch, Phys. Rev. A68, 013817 (2003). (10.1103/PhysRevA.68.013817) / Phys. Rev. A (2003)
G. A. Smith, S. Chaudhury, P. S. Jessen, J. Opt. B Quant. Semiclass. Opt.5, 323 (2003). (10.1088/1464-4266/5/4/301) / J. Opt. B Quant. Semiclass. Opt. (2003)
H. M. Wiseman, Phys. Rev. A49, 2133 (1994). (10.1103/PhysRevA.49.2133) / Phys. Rev. A (1994)
Details are provided in the supporting online material on Science Online.
L.-A. Wu, H. J. Kimble, J. L. Hall, H. Wu, Phys. Rev. Lett.57, 2520 (1986). (10.1103/PhysRevLett.57.2520) / Phys. Rev. Lett. (1986)
We thank P. Jessen I. Deutsch A. Silberfarb H. Wiseman K. Mølmer M. Kasevich V. Vuletik R. van Handel and particularly A. Doherty for numerous insightful conversations. Supported by NSF (grants PHY-9987541 and EIA-0086038) the Office of Naval Research (grant N00014-00-1-0479) and the Caltech MURI Center for Quantum Networks (grant DAAD19-001-0374). J.K.S. acknowledges a Hertz fellowship.

Dates

Type	When
Created	21 years, 4 months ago (April 8, 2004, 4:23 p.m.)
Deposited	1 year, 7 months ago (Jan. 9, 2024, 11:43 p.m.)
Indexed	3 days, 4 hours ago (Aug. 27, 2025, 11:37 a.m.)
Issued	21 years, 4 months ago (April 9, 2004)
Published	21 years, 4 months ago (April 9, 2004)
Published Print	21 years, 4 months ago (April 9, 2004)

Funders 0

None

BibTeX

@article{Geremia_2004, title={Real-Time Quantum Feedback Control of Atomic Spin-Squeezing}, volume={304}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1095374}, DOI={10.1126/science.1095374}, number={5668}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Geremia, JM and Stockton, John K. and Mabuchi, Hideo}, year={2004}, month=apr, pages={270–273} }

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