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Adaptive Phase Measurements of Optical Modes: Going Beyond the MarginalQDistribution
Abstract
In standard single-shot measurements of the phase of an optical mode, the phase and amplitude quadratures are jointly measured, and the latter information discarded. These techniques are consequently suboptimal. Here I suggest an adaptive scheme, whereby the phase is estimated from the results so far and fed back to control the phase of the local oscillator so as to measure the (estimated) phase quadrature only. I show that adaptive phase measurements can approach optimal phase measurements for states with both low and high mean photon numbers.
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Citations
Cited by
O'Brien, J. L., Furusawa, A., & Vučković, J. (2009) · Nature Photonics · doi:10.1038/nphoton.2009.229 · Cited by 2,388
Entanglement-free Heisenberg-limited phase estimation
Higgins, B. L., Berry, D. W., Bartlett, S. D., Wiseman, H. M., & Pryde, G. J. (2007) · Nature · doi:10.1038/nature06257 · Cited by 628
Self-citationMetrology withPT-Symmetric Cavities: Enhanced Sensitivity near thePT-Phase Transition
Liu, Z.-P., Zhang, J., Özdemir, Ş. K., Peng, B., Jing, H., Lü, X.-Y., Li, C.-W., Yang, L., Nori, F., & Liu, Y.-X. (2016) · Physical Review Letters · doi:10.1103/physrevlett.117.110802 · Cited by 445
Quantum-enhanced measurements without entanglement
Braun, D., Adesso, G., Benatti, F., Floreanini, R., Marzolino, U., Mitchell, M. W., & Pirandola, S. (2018) · Reviews of Modern Physics · doi:10.1103/revmodphys.90.035006 · Cited by 434
Quantum feedback: Theory, experiments, and applications
Zhang, J., Liu, Y.-X., Wu, R.-B., Jacobs, K., & Nori, F. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.02.003 · Cited by 272
Metadata
- Authors
- Wiseman, H. M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1995-12-18
- Volume
- 75
- Issue
- 25
- Pages
- 4587-4590
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2029543068
- Cited by
- 225
- References
- 0
- FWCI
- 5.75
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wiseman, H. M. (1995). Adaptive Phase Measurements of Optical Modes: Going Beyond the MarginalQDistribution. Physical Review Letters. https://doi.org/10.1103/physrevlett.75.4587
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