Decoherence: A Closed-System Approach

The aim of this paper is to review a new perspective about decoherence, according to which formalisms originally devised to deal just with closed or open systems can be subsumed under a closed-system approach that generalizes the traditional account of the phenomenon. This new viewpoint dissolves ce...

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Autores principales: Fortin, S., Lombardi, O., Castagnino, M.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin
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spelling todo:paper_01039733_v44_n1_p138_Fortin2023-10-03T14:57:40Z Decoherence: A Closed-System Approach Fortin, S. Lombardi, O. Castagnino, M. Closed system Quantum decoherence Relevant observables The aim of this paper is to review a new perspective about decoherence, according to which formalisms originally devised to deal just with closed or open systems can be subsumed under a closed-system approach that generalizes the traditional account of the phenomenon. This new viewpoint dissolves certain conceptual difficulties of the orthodox open-system approach but, at the same time, shows that the openness of the quantum system is not the essential ingredient for decoherence, as commonly claimed. Moreover, when the behavior of a decoherent system is described from a closed-system perspective, the account of decoherence turns out to be more general than that supplied by the open-system approach, and the quantum-to-classical transition defines unequivocally the realm of classicality by identifying the observables with classical-like behavior. © 2013 Sociedade Brasileira de Física. Fil:Fortin, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castagnino, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Closed system
Quantum decoherence
Relevant observables
spellingShingle Closed system
Quantum decoherence
Relevant observables
Fortin, S.
Lombardi, O.
Castagnino, M.
Decoherence: A Closed-System Approach
topic_facet Closed system
Quantum decoherence
Relevant observables
description The aim of this paper is to review a new perspective about decoherence, according to which formalisms originally devised to deal just with closed or open systems can be subsumed under a closed-system approach that generalizes the traditional account of the phenomenon. This new viewpoint dissolves certain conceptual difficulties of the orthodox open-system approach but, at the same time, shows that the openness of the quantum system is not the essential ingredient for decoherence, as commonly claimed. Moreover, when the behavior of a decoherent system is described from a closed-system perspective, the account of decoherence turns out to be more general than that supplied by the open-system approach, and the quantum-to-classical transition defines unequivocally the realm of classicality by identifying the observables with classical-like behavior. © 2013 Sociedade Brasileira de Física.
format JOUR
author Fortin, S.
Lombardi, O.
Castagnino, M.
author_facet Fortin, S.
Lombardi, O.
Castagnino, M.
author_sort Fortin, S.
title Decoherence: A Closed-System Approach
title_short Decoherence: A Closed-System Approach
title_full Decoherence: A Closed-System Approach
title_fullStr Decoherence: A Closed-System Approach
title_full_unstemmed Decoherence: A Closed-System Approach
title_sort decoherence: a closed-system approach
url http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin
work_keys_str_mv AT fortins decoherenceaclosedsystemapproach
AT lombardio decoherenceaclosedsystemapproach
AT castagninom decoherenceaclosedsystemapproach
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