Data di Pubblicazione:
2020
Citazione:
Nonequilibrium readiness and precision of Gaussian quantum thermometers / L. Mancino, M.G. Genoni, M. Barbieri, M. Paternostro. - In: PHYSICAL REVIEW RESEARCH. - ISSN 2643-1564. - 2:3(2020 Sep 23), pp. 033498.033498.1-033498.033498-8. [10.1103/PhysRevResearch.2.033498]
Abstract:
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-dimensionalones. 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 Gaussianthermometers; on the other hand, we show that nonequilibrium conditions do not guarantee the best sensitivitiesin temperature estimation, thus suggesting the reassessment of some of the working principles underpinningquantum thermometry.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
L. Mancino, M.G. Genoni, M. Barbieri, M. Paternostro
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