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
Publicado: 2013
Materias:
Decoherence
Quantum measurement
Quantum mechanics
Reduced states
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00665215_v46_n2_p281_Fortin
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 paper:paper_00665215_v46_n2_p281_Fortin
record_format dspace
spelling paper:paper_00665215_v46_n2_p281_Fortin2023-06-08T15:06:13Z Measurement and decoherencefrom a closed-system perspective 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. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00665215_v46_n2_p281_Fortin 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
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.
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
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00665215_v46_n2_p281_Fortin
http://hdl.handle.net/20.500.12110/paper_00665215_v46_n2_p281_Fortin
_version_ 1768545871978299392

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