Using a quantum work meter to test non-equilibrium fluctuation theorems

Work is an essential concept in classical thermodynamics, and in the quantum regime, where the notion of a trajectory is not available, its definition is not trivial. For driven (but otherwise isolated) quantum systems, work can be defined as a random variable, associated with the change in the inte...

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Autores principales:	Cerisola, F., Margalit, Y., MacHluf, S., Roncaglia, A.J., Paz, J.P., Folman, R.
Formato:	JOUR
Materias:	equilibrium probability quantum mechanics thermodynamics cold stress identity validity
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_20411723_v8_n1_p_Cerisola
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_20411723_v8_n1_p_Cerisola2023-10-03T16:37:53Z Using a quantum work meter to test non-equilibrium fluctuation theorems Cerisola, F. Margalit, Y. MacHluf, S. Roncaglia, A.J. Paz, J.P. Folman, R. equilibrium probability quantum mechanics thermodynamics cold stress identity probability thermodynamics validity Work is an essential concept in classical thermodynamics, and in the quantum regime, where the notion of a trajectory is not available, its definition is not trivial. For driven (but otherwise isolated) quantum systems, work can be defined as a random variable, associated with the change in the internal energy. The probability for the different values of work captures essential information describing the behaviour of the system, both in and out of thermal equilibrium. In fact, the work probability distribution is at the core of "fluctuation theorems" in quantum thermodynamics. Here we present the design and implementation of a quantum work meter operating on an ensemble of cold atoms, which are controlled by an atom chip. Our device not only directly measures work but also directly samples its probability distribution. We demonstrate the operation of this new tool and use it to verify the validity of the quantum Jarzynksi identity. © 2017 The Author(s). JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20411723_v8_n1_p_Cerisola
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	equilibrium probability quantum mechanics thermodynamics cold stress identity probability thermodynamics validity
spellingShingle	equilibrium probability quantum mechanics thermodynamics cold stress identity probability thermodynamics validity Cerisola, F. Margalit, Y. MacHluf, S. Roncaglia, A.J. Paz, J.P. Folman, R. Using a quantum work meter to test non-equilibrium fluctuation theorems
topic_facet	equilibrium probability quantum mechanics thermodynamics cold stress identity probability thermodynamics validity
description	Work is an essential concept in classical thermodynamics, and in the quantum regime, where the notion of a trajectory is not available, its definition is not trivial. For driven (but otherwise isolated) quantum systems, work can be defined as a random variable, associated with the change in the internal energy. The probability for the different values of work captures essential information describing the behaviour of the system, both in and out of thermal equilibrium. In fact, the work probability distribution is at the core of "fluctuation theorems" in quantum thermodynamics. Here we present the design and implementation of a quantum work meter operating on an ensemble of cold atoms, which are controlled by an atom chip. Our device not only directly measures work but also directly samples its probability distribution. We demonstrate the operation of this new tool and use it to verify the validity of the quantum Jarzynksi identity. © 2017 The Author(s).
format	JOUR
author	Cerisola, F. Margalit, Y. MacHluf, S. Roncaglia, A.J. Paz, J.P. Folman, R.
author_facet	Cerisola, F. Margalit, Y. MacHluf, S. Roncaglia, A.J. Paz, J.P. Folman, R.
author_sort	Cerisola, F.
title	Using a quantum work meter to test non-equilibrium fluctuation theorems
title_short	Using a quantum work meter to test non-equilibrium fluctuation theorems
title_full	Using a quantum work meter to test non-equilibrium fluctuation theorems
title_fullStr	Using a quantum work meter to test non-equilibrium fluctuation theorems
title_full_unstemmed	Using a quantum work meter to test non-equilibrium fluctuation theorems
title_sort	using a quantum work meter to test non-equilibrium fluctuation theorems
url	http://hdl.handle.net/20.500.12110/paper_20411723_v8_n1_p_Cerisola
work_keys_str_mv	AT cerisolaf usingaquantumworkmetertotestnonequilibriumfluctuationtheorems AT margality usingaquantumworkmetertotestnonequilibriumfluctuationtheorems AT machlufs usingaquantumworkmetertotestnonequilibriumfluctuationtheorems AT roncagliaaj usingaquantumworkmetertotestnonequilibriumfluctuationtheorems AT pazjp usingaquantumworkmetertotestnonequilibriumfluctuationtheorems AT folmanr usingaquantumworkmetertotestnonequilibriumfluctuationtheorems
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Using a quantum work meter to test non-equilibrium fluctuation theorems

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