Optomechanics-Based Quantum Estimation Theory for Collapse Models
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 provi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/25/3/500 |
| _version_ | 1797612007206158336 |
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| author | Marta Maria Marchese Alessio Belenchia Mauro Paternostro |
| author_facet | Marta Maria Marchese Alessio Belenchia Mauro Paternostro |
| author_sort | Marta Maria Marchese |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T06:35:23Z |
| format | Article |
| id | doaj.art-e8c0c01088714ecda9b452739716daa0 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-11T06:35:23Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-e8c0c01088714ecda9b452739716daa02023-11-17T10:57:04ZengMDPI AGEntropy1099-43002023-03-0125350010.3390/e25030500Optomechanics-Based Quantum Estimation Theory for Collapse ModelsMarta Maria Marchese0Alessio Belenchia1Mauro Paternostro2Department of Physics and Astronomy, The University of Sheffield, Hounsfield Road, Sheffield S3 7RH, UKInstitut für Theoretische Physik, Eberhard-Karls-Universität Tübingen, 72076 Tübingen, GermanyCentre for Quantum Materials and Technologies, School of Mathematics and Physics, Queens University, Belfast BT7 1NN, UKWe 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.https://www.mdpi.com/1099-4300/25/3/500quantum metrologyquantum optomechaincscollapse models |
| spellingShingle | Marta Maria Marchese Alessio Belenchia Mauro Paternostro Optomechanics-Based Quantum Estimation Theory for Collapse Models Entropy quantum metrology quantum optomechaincs collapse models |
| title | Optomechanics-Based Quantum Estimation Theory for Collapse Models |
| title_full | Optomechanics-Based Quantum Estimation Theory for Collapse Models |
| title_fullStr | Optomechanics-Based Quantum Estimation Theory for Collapse Models |
| title_full_unstemmed | Optomechanics-Based Quantum Estimation Theory for Collapse Models |
| title_short | Optomechanics-Based Quantum Estimation Theory for Collapse Models |
| title_sort | optomechanics based quantum estimation theory for collapse models |
| topic | quantum metrology quantum optomechaincs collapse models |
| url | https://www.mdpi.com/1099-4300/25/3/500 |
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