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, Sebastian Ezequiel, Castagnino, Mario Alberto G. J.
Publicado: 2014
Materias:
Closed system
Quantum decoherence
Relevant observables
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v44_n1_p138_Fortin
http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01039733_v44_n1_p138_Fortin
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spelling paper:paper_01039733_v44_n1_p138_Fortin2023-06-08T15:10:31Z Decoherence: A Closed-System Approach Fortin, Sebastian Ezequiel Castagnino, Mario Alberto G. J. 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. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v44_n1_p138_Fortin 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, Sebastian Ezequiel
Castagnino, Mario Alberto G. J.
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.
author Fortin, Sebastian Ezequiel
Castagnino, Mario Alberto G. J.
author_facet Fortin, Sebastian Ezequiel
Castagnino, Mario Alberto G. J.
author_sort Fortin, Sebastian Ezequiel
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
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01039733_v44_n1_p138_Fortin
http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin
work_keys_str_mv AT fortinsebastianezequiel decoherenceaclosedsystemapproach
AT castagninomarioalbertogj decoherenceaclosedsystemapproach
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