Measurement and decoherencefrom a closed-system perspective

In this paper we discuss the problems that arise in the model of measurement based on decoherence. Considering that criticisms of this model have focused on its use of the reduced states of open systems, we propose a different approach. Our proposal adopts a closed-system perspective which allows us...

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Detalles Bibliográficos
Autor principal: Fortin, S.
Formato: JOUR
Materias:
Decoherence
Quantum measurement
Quantum mechanics
Reduced states
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00665215_v46_n2_p281_Fortin
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00665215_v46_n2_p281_Fortin
record_format dspace
spelling todo:paper_00665215_v46_n2_p281_Fortin2023-10-03T14:53:07Z Measurement and decoherencefrom a closed-system perspective Fortin, S. Decoherence Quantum measurement Quantum mechanics Reduced states In this paper we discuss the problems that arise in the model of measurement based on decoherence. Considering that criticisms of this model have focused on its use of the reduced states of open systems, we propose a different approach. Our proposal adopts a closed-system perspective which allows us to describe irreversible processes in systems with no interaction with an environment. Furthermore, the expectation-value approach allows us to study the evolution of quantum systems without appealing to their states. The combination of these two perspectives gives rise to a new formulation of quantum decoherence whose application to the measurement problem overcomes criticisms to the original approach. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00665215_v46_n2_p281_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 Decoherence
Quantum measurement
Quantum mechanics
Reduced states
spellingShingle Decoherence
Quantum measurement
Quantum mechanics
Reduced states
Fortin, S.
Measurement and decoherencefrom a closed-system perspective
topic_facet Decoherence
Quantum measurement
Quantum mechanics
Reduced states
description In this paper we discuss the problems that arise in the model of measurement based on decoherence. Considering that criticisms of this model have focused on its use of the reduced states of open systems, we propose a different approach. Our proposal adopts a closed-system perspective which allows us to describe irreversible processes in systems with no interaction with an environment. Furthermore, the expectation-value approach allows us to study the evolution of quantum systems without appealing to their states. The combination of these two perspectives gives rise to a new formulation of quantum decoherence whose application to the measurement problem overcomes criticisms to the original approach.
format JOUR
author Fortin, S.
author_facet Fortin, S.
author_sort Fortin, S.
title Measurement and decoherencefrom a closed-system perspective
title_short Measurement and decoherencefrom a closed-system perspective
title_full Measurement and decoherencefrom a closed-system perspective
title_fullStr Measurement and decoherencefrom a closed-system perspective
title_full_unstemmed Measurement and decoherencefrom a closed-system perspective
title_sort measurement and decoherencefrom a closed-system perspective
url http://hdl.handle.net/20.500.12110/paper_00665215_v46_n2_p281_Fortin
work_keys_str_mv AT fortins measurementanddecoherencefromaclosedsystemperspective
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