Thermodynamic resources in continuous-variable quantum systems

Abstract Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic. Here we develop a framework for identifying such resources in diverse applications of bosonic continuous-vari...

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Autores principales: Varun Narasimhachar, Syed Assad, Felix C. Binder, Jayne Thompson, Benjamin Yadin, Mile Gu
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/bd5bacca3a664edf894ef0f005097c1a
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spelling oai:doaj.org-article:bd5bacca3a664edf894ef0f005097c1a2021-12-02T13:57:39ZThermodynamic resources in continuous-variable quantum systems10.1038/s41534-020-00342-62056-6387https://doaj.org/article/bd5bacca3a664edf894ef0f005097c1a2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41534-020-00342-6https://doaj.org/toc/2056-6387Abstract Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic. Here we develop a framework for identifying such resources in diverse applications of bosonic continuous-variable systems. Introducing the class of bosonic linear thermal operations to model operationally feasible processes, we apply this model to identify uniquely quantum properties of bosonic states that refine classical notions of thermodynamic resourcefulness. Among these are (1) a suite of temperature-like quantities generalizing the equilibrium temperature to quantum, non-equilibrium scenarios; (2) signal-to-noise ratios quantifying a system’s capacity to carry information in phase-space displacement; and (3) well-established non-classicality measures quantifying the resolution in sensing and parameter estimation tasks.Varun NarasimhacharSyed AssadFelix C. BinderJayne ThompsonBenjamin YadinMile GuNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-7 (2021)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
Electronic computers. Computer science
QA75.5-76.95
spellingShingle Physics
QC1-999
Electronic computers. Computer science
QA75.5-76.95
Varun Narasimhachar
Syed Assad
Felix C. Binder
Jayne Thompson
Benjamin Yadin
Mile Gu
Thermodynamic resources in continuous-variable quantum systems
description Abstract Thermodynamic resources, beyond their well-known usefulness in work extraction and other thermodynamic tasks, are often important also in tasks that are not evidently thermodynamic. Here we develop a framework for identifying such resources in diverse applications of bosonic continuous-variable systems. Introducing the class of bosonic linear thermal operations to model operationally feasible processes, we apply this model to identify uniquely quantum properties of bosonic states that refine classical notions of thermodynamic resourcefulness. Among these are (1) a suite of temperature-like quantities generalizing the equilibrium temperature to quantum, non-equilibrium scenarios; (2) signal-to-noise ratios quantifying a system’s capacity to carry information in phase-space displacement; and (3) well-established non-classicality measures quantifying the resolution in sensing and parameter estimation tasks.
format article
author Varun Narasimhachar
Syed Assad
Felix C. Binder
Jayne Thompson
Benjamin Yadin
Mile Gu
author_facet Varun Narasimhachar
Syed Assad
Felix C. Binder
Jayne Thompson
Benjamin Yadin
Mile Gu
author_sort Varun Narasimhachar
title Thermodynamic resources in continuous-variable quantum systems
title_short Thermodynamic resources in continuous-variable quantum systems
title_full Thermodynamic resources in continuous-variable quantum systems
title_fullStr Thermodynamic resources in continuous-variable quantum systems
title_full_unstemmed Thermodynamic resources in continuous-variable quantum systems
title_sort thermodynamic resources in continuous-variable quantum systems
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/bd5bacca3a664edf894ef0f005097c1a
work_keys_str_mv AT varunnarasimhachar thermodynamicresourcesincontinuousvariablequantumsystems
AT syedassad thermodynamicresourcesincontinuousvariablequantumsystems
AT felixcbinder thermodynamicresourcesincontinuousvariablequantumsystems
AT jaynethompson thermodynamicresourcesincontinuousvariablequantumsystems
AT benjaminyadin thermodynamicresourcesincontinuousvariablequantumsystems
AT milegu thermodynamicresourcesincontinuousvariablequantumsystems
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