The role of quantum measurement in stochastic thermodynamics

Rebuilding quantum thermodynamics on quantum measurement Measuring a quantum system is an ultimately random operation. It induces a genuinely quantum time arrow, increasing the system’s entropy. But because it perturbs its state, quantum measurement also provides energy to the quantum system. These...

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Autores principales:	Cyril Elouard, David A. Herrera-Martí, Maxime Clusel, Alexia Auffèves
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/cfbf6c8b2d974630b17ea742dee6e90a
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spelling	oai:doaj.org-article:cfbf6c8b2d974630b17ea742dee6e90a2021-12-02T15:10:12ZThe role of quantum measurement in stochastic thermodynamics10.1038/s41534-017-0008-42056-6387https://doaj.org/article/cfbf6c8b2d974630b17ea742dee6e90a2017-03-01T00:00:00Zhttps://doi.org/10.1038/s41534-017-0008-4https://doaj.org/toc/2056-6387Rebuilding quantum thermodynamics on quantum measurement Measuring a quantum system is an ultimately random operation. It induces a genuinely quantum time arrow, increasing the system’s entropy. But because it perturbs its state, quantum measurement also provides energy to the quantum system. These energetic quantum fluctuations play the same role as thermal fluctuations in thermodynamics, while being of quantum nature. Building on such “Quantum Heat”, a group of scientists from france provided a thermodynamic analyzis of canonical experiments of quantum optics. They show that quantum heat is a major concept to evaluate the performances of a basic protocol to counteract the decoherence of a quantum bit. The findings pave the way towards a new generation of quantum engines, powered by quantum measurement. They bring new tools to investigate the energetic cost of quantum protocols performed at ultra-low temperature, in the presence of decoherence.Cyril ElouardDavid A. Herrera-MartíMaxime CluselAlexia AuffèvesNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 3, Iss 1, Pp 1-10 (2017)
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 Cyril Elouard David A. Herrera-Martí Maxime Clusel Alexia Auffèves The role of quantum measurement in stochastic thermodynamics
description	Rebuilding quantum thermodynamics on quantum measurement Measuring a quantum system is an ultimately random operation. It induces a genuinely quantum time arrow, increasing the system’s entropy. But because it perturbs its state, quantum measurement also provides energy to the quantum system. These energetic quantum fluctuations play the same role as thermal fluctuations in thermodynamics, while being of quantum nature. Building on such “Quantum Heat”, a group of scientists from france provided a thermodynamic analyzis of canonical experiments of quantum optics. They show that quantum heat is a major concept to evaluate the performances of a basic protocol to counteract the decoherence of a quantum bit. The findings pave the way towards a new generation of quantum engines, powered by quantum measurement. They bring new tools to investigate the energetic cost of quantum protocols performed at ultra-low temperature, in the presence of decoherence.
format	article
author	Cyril Elouard David A. Herrera-Martí Maxime Clusel Alexia Auffèves
author_facet	Cyril Elouard David A. Herrera-Martí Maxime Clusel Alexia Auffèves
author_sort	Cyril Elouard
title	The role of quantum measurement in stochastic thermodynamics
title_short	The role of quantum measurement in stochastic thermodynamics
title_full	The role of quantum measurement in stochastic thermodynamics
title_fullStr	The role of quantum measurement in stochastic thermodynamics
title_full_unstemmed	The role of quantum measurement in stochastic thermodynamics
title_sort	role of quantum measurement in stochastic thermodynamics
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/cfbf6c8b2d974630b17ea742dee6e90a
work_keys_str_mv	AT cyrilelouard theroleofquantummeasurementinstochasticthermodynamics AT davidaherreramarti theroleofquantummeasurementinstochasticthermodynamics AT maximeclusel theroleofquantummeasurementinstochasticthermodynamics AT alexiaauffeves theroleofquantummeasurementinstochasticthermodynamics AT cyrilelouard roleofquantummeasurementinstochasticthermodynamics AT davidaherreramarti roleofquantummeasurementinstochasticthermodynamics AT maximeclusel roleofquantummeasurementinstochasticthermodynamics AT alexiaauffeves roleofquantummeasurementinstochasticthermodynamics
_version_	1718387720689025024

The role of quantum measurement in stochastic thermodynamics

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