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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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01039733_v44_n1_p138_Fortin |
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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 |
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Universidad de Buenos Aires |
institution_str |
I-28 |
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R-134 |
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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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1782030702807613440 |