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Title
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Measurement theory for closed quantum systems
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Author
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Abstract
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| We introduce the concept of a "classical observable" as an operator with vanishingly small quantum fluctuations on a set of density matrices. Their study provides a natural starting point to analyse the quantum measurement problem. In particular, it allows to identify Schrodinger cats and the associated projection operators intrinsically, without the need to invoke an environment. We discuss how our new approach relates to the open system analysis of quantum measurements and to thermalization studies in closed quantum systems. |
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Language
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English
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Source (journal)
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Journal of physics : conference series. - Bristol, 2004, currens
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MECHANICS
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Source (book)
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7th International Workshop on Decoherence, Information, Complexity and, Entropy (DICE) - Spacetime - Matter - Quantum Mechanics, SEP 15-19, 2014, Castiglioncello, ITALY
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Publication
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Bristol
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Iop publishing ltd
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2015
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ISSN
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1742-6588
[print]
1742-6596
[online]
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DOI
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10.1088/1742-6596/626/1/012056
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Volume/pages
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626
(2015)
, 7 p.
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Article Reference
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012056
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ISI
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000357943100056
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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