Marchese, M.M. orcid.org/0000-0001-5815-1547, Belenchia, A. and Paternostro, M. (2023) Optomechanics-based quantum estimation theory for collapse models. Entropy, 25 (3). 500. ISSN 1099-4300
Abstract
We make use of the powerful formalism of quantum parameter estimation to assess the characteristic rates of a continuous spontaneous localization (CSL) model affecting the motion of a massive mechanical system. We show that a study performed in non-equilibrium conditions unveils the advantages provided by the use of genuinely quantum resources—such as quantum correlations—in estimating the CSL-induced diffusion rate. In stationary conditions, instead, the gap between quantum performance and a classical scheme disappears. Our investigation contributes to the ongoing effort aimed at identifying suitable conditions for the experimental assessment of collapse models.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | quantum metrology; quantum optomechaincs; collapse models |
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/M013472/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/V021303/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 21 Apr 2023 15:29 |
Last Modified: | 21 Apr 2023 15:29 |
Status: | Published |
Publisher: | MDPI AG |
Refereed: | Yes |
Identification Number: | 10.3390/e25030500 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:198362 |