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Advantage of coherent states in ring resonators over any quantum probe single-pass absorption estimation strategy
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Belsley, Alexandre, Allen, Euan J., Datta, Animesh and Matthews, Jonathan C. F. (2022) Advantage of coherent states in ring resonators over any quantum probe single-pass absorption estimation strategy. Physical Review Letters, 128 (23). 230501. doi:10.1103/physrevlett.128.230501 ISSN 1079-7114.
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Official URL: https://doi.org/10.1103/physrevlett.128.230501
Abstract
Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. By exploiting interference and resonant enhancement effects, we show that coherent-state probes in all-pass ring resonators can outperform any quantum probe single-pass strategy even when normalized by the mean input photon number. We also find that under optimal conditions coherent-state probes equal the performance of arbitrarily bright pure single-mode squeezed probes in all-pass ring resonators.
| Item Type: | Journal Article | ||||||||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||
| SWORD Depositor: | Library Publications Router | ||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Quantum theory, Quantum measure theory, Physical measurements, Resonators | ||||||||||||||||||
| Journal or Publication Title: | Physical Review Letters | ||||||||||||||||||
| Publisher: | American Physical Society (APS) | ||||||||||||||||||
| ISSN: | 1079-7114 | ||||||||||||||||||
| Official Date: | 10 June 2022 | ||||||||||||||||||
| Dates: |
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| Volume: | 128 | ||||||||||||||||||
| Number: | 23 | ||||||||||||||||||
| Article Number: | 230501 | ||||||||||||||||||
| DOI: | 10.1103/physrevlett.128.230501 | ||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
| Copyright Holders: | © 2022 American Physical Society | ||||||||||||||||||
| Date of first compliant deposit: | 26 July 2022 | ||||||||||||||||||
| Date of first compliant Open Access: | 26 July 2022 | ||||||||||||||||||
| RIOXX Funder/Project Grant: |
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