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Rasbi, K.A. orcid.org/0000-0002-0259-3204, Beige, A. orcid.org/0000-0001-7230-4220 and Clark, L.A. orcid.org/0000-0002-7074-2777 (2022) Quantum jump metrology in a two-cavity network. Physical Review A, 106 (6). 062619. ISSN 2469-9926
Abstract
Quantum metrology enhances measurement precision by utilizing the properties of quantum physics. In interferometry, this is typically achieved by evolving highly entangled quantum states before performing single-shot measurements to reveal information about an unknown parameter. While this is often the optimum approach, implementation with all but the smallest states is still extremely challenging. An alternative approach is quantum jump metrology [L. A. Clark et al., Phys. Rev. A 99, 022102 (2019)2469-992610.1103/PhysRevA.99.022102], which deduces information by continuously monitoring an open quantum system while inducing phase-dependent temporal correlations with the help of quantum feedback. Taking this approach here, we analyze measurements of a relative phase in an optical network of two cavities with quantum feedback in the form of laser pulses. It is shown that the proposed approach can exceed the standard quantum limit without the need for complex quantum states while being scalable and more practical than previous related schemes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Theoretical Physics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Feb 2024 16:04 |
Last Modified: | 07 Oct 2024 11:28 |
Published Version: | https://journals.aps.org/pra/abstract/10.1103/Phys... |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevA.106.062619 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:208497 |
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Quantum jump metrology in a two-cavity network. (deposited 07 Oct 2024 11:26)
- Quantum jump metrology in a two-cavity network. (deposited 01 Feb 2024 16:04) [Currently Displayed]