Nonequilibrium readiness and precision of Gaussian quantum thermometers
The dimensionality of a thermometer is key in the design of quantum thermometry schemes. In general, the phenomenology that is typical of qubit-based quantum thermometry does not apply to infinite-dimensional ones. We analyze the dynamical and metrological features of nonequilibrium Gaussian quantum...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-09-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.033498 |
| _version_ | 1797211254700376064 |
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| author | Luca Mancino Marco G. Genoni Marco Barbieri Mauro Paternostro |
| author_facet | Luca Mancino Marco G. Genoni Marco Barbieri Mauro Paternostro |
| author_sort | Luca Mancino |
| collection | DOAJ |
| description | The dimensionality of a thermometer is key in the design of quantum thermometry schemes. In general, the phenomenology that is typical of qubit-based quantum thermometry does not apply to infinite-dimensional ones. We analyze the dynamical and metrological features of nonequilibrium Gaussian quantum thermometers: On one hand, we highlight how quantum entanglement can enhance the readiness of composite Gaussian thermometers; on the other hand, we show that nonequilibrium conditions do not guarantee the best sensitivities in temperature estimation, thus suggesting the reassessment of some of the working principles underpinning quantum thermometry. |
| first_indexed | 2024-04-24T10:23:34Z |
| format | Article |
| id | doaj.art-34e6a44ced8349f18aecbb63a2151d0c |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:23:34Z |
| publishDate | 2020-09-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-34e6a44ced8349f18aecbb63a2151d0c2024-04-12T17:01:20ZengAmerican Physical SocietyPhysical Review Research2643-15642020-09-012303349810.1103/PhysRevResearch.2.033498Nonequilibrium readiness and precision of Gaussian quantum thermometersLuca MancinoMarco G. GenoniMarco BarbieriMauro PaternostroThe dimensionality of a thermometer is key in the design of quantum thermometry schemes. In general, the phenomenology that is typical of qubit-based quantum thermometry does not apply to infinite-dimensional ones. We analyze the dynamical and metrological features of nonequilibrium Gaussian quantum thermometers: On one hand, we highlight how quantum entanglement can enhance the readiness of composite Gaussian thermometers; on the other hand, we show that nonequilibrium conditions do not guarantee the best sensitivities in temperature estimation, thus suggesting the reassessment of some of the working principles underpinning quantum thermometry.http://doi.org/10.1103/PhysRevResearch.2.033498 |
| spellingShingle | Luca Mancino Marco G. Genoni Marco Barbieri Mauro Paternostro Nonequilibrium readiness and precision of Gaussian quantum thermometers Physical Review Research |
| title | Nonequilibrium readiness and precision of Gaussian quantum thermometers |
| title_full | Nonequilibrium readiness and precision of Gaussian quantum thermometers |
| title_fullStr | Nonequilibrium readiness and precision of Gaussian quantum thermometers |
| title_full_unstemmed | Nonequilibrium readiness and precision of Gaussian quantum thermometers |
| title_short | Nonequilibrium readiness and precision of Gaussian quantum thermometers |
| title_sort | nonequilibrium readiness and precision of gaussian quantum thermometers |
| url | http://doi.org/10.1103/PhysRevResearch.2.033498 |
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