Marchese, M.M. orcid.org/0000-0001-5815-1547 and Kok, P. orcid.org/0000-0002-6608-330X (2023) Large baseline optical imaging assisted by single photons and linear quantum optics. Physical Review Letters, 130 (16). 160801. ISSN 0031-9007
Abstract
In this Letter, we show that by combining quantum metrology and networking tools, it is possible to extend the baseline of an interferometric optical telescope and thus improve diffraction-limited imaging of point source positions. The quantum interferometer is based on single-photon sources, linear optical circuits, and efficient photon number counters. Surprisingly, with thermal (stellar) sources of low photon number per mode and high transmission losses across the baseline, the detected photon probability distribution still retains a large amount of Fisher information about the source position, allowing for a significant improvement in the resolution of positioning point sources, on the order of 10 μ as. Our proposal can be implemented with current technology. In particular, our proposal does not require experimental optical quantum memories.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Quantum metrology; Quantum sensing; Quantum theory; Quantum metrology; |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/V021303/1 Engineering and Physical Sciences Research Council EP/T001011/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 24 Apr 2023 15:28 |
Last Modified: | 24 Apr 2023 15:28 |
Status: | Published |
Publisher: | American Physical Society (APS) |
Refereed: | Yes |
Identification Number: | 10.1103/physrevlett.130.160801 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:198474 |