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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Nature Portfolio
2021
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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) |
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Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 |
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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 |
_version_ |
1718392283128135680 |