Consistent-Histories Description of A World of Increasing Entropy

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dc.creatorWoo, C. H.
dc.date1999-01-18
dc.date1999-09-01
dc.date.accessioned2026-07-07T06:16:06Z
dc.date.available2026-07-07T06:16:06Z
dc.descriptionA distinction is made between two kinds of consistent histories: (1) robust histories consistent by virtue of decoherence, and (2) verifiable histories consistent through the existence of accessible records. It is events in verifiable histories which describe amplified quantum fluctuations. If the consistent-histories formalism is to improve on the Copenhagen interpretation by providing a self-contained quantum representation of the quasi-classical world, the appropriate quantum state must track closely all macroscopic phenomena, and the von Neumann entropy of that quantum state ought to change in the same direction as the statistical entropy of the macro-world. Since the von Neumann entropy tends to decrease under successive branchings, the evolution of an entropy-increasing quasi-classical world is not described by the process of branchings only: mergings of previously separate histories must also occur. As a consequence, the number of possible quasi-classical worlds does not have to grow indefinitely as in the many-world picture.
dc.identifierhttps://arxiv.org/abs/quant-ph/9901055
dc.identifierhttp://arxiv.org/abs/quant-ph/9901055
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93955
dc.subjectQuantum Physics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleConsistent-Histories Description of A World of Increasing Entropy
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