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A Microscopic Liouville Arrow of Time

We discuss the treatment of quantum-gravitational fluctuations in the space-time background as an `environment', using the formalism for open quantum-mechanical systems, which leads to a microscopic arrow of time. After reviewing briefly the open-system formalism, and the motivations for treati...

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Detalles Bibliográficos
Autores principales: Ellis, John R., Mavromatos, N.E., Nanopoulos, Dimitri V.
Lenguaje:eng
Publicado: 1998
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0960-0779(98)00152-0
http://cds.cern.ch/record/355252
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author Ellis, John R.
Mavromatos, N.E.
Nanopoulos, Dimitri V.
author_facet Ellis, John R.
Mavromatos, N.E.
Nanopoulos, Dimitri V.
author_sort Ellis, John R.
collection CERN
description We discuss the treatment of quantum-gravitational fluctuations in the space-time background as an `environment', using the formalism for open quantum-mechanical systems, which leads to a microscopic arrow of time. After reviewing briefly the open-system formalism, and the motivations for treating quantum gravity as an `environment', we present an example from general relativity and a general framework based on non-critical strings, with a Liouville field that we identify with time. We illustrate this approach with calculations in the contexts of two-dimensional models and $D$ branes. Finally, some prospects for observational tests of these ideas are mentioned.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3552522023-03-14T17:58:21Zdoi:10.1016/S0960-0779(98)00152-0http://cds.cern.ch/record/355252engEllis, John R.Mavromatos, N.E.Nanopoulos, Dimitri V.A Microscopic Liouville Arrow of TimeParticle Physics - TheoryWe discuss the treatment of quantum-gravitational fluctuations in the space-time background as an `environment', using the formalism for open quantum-mechanical systems, which leads to a microscopic arrow of time. After reviewing briefly the open-system formalism, and the motivations for treating quantum gravity as an `environment', we present an example from general relativity and a general framework based on non-critical strings, with a Liouville field that we identify with time. We illustrate this approach with calculations in the contexts of two-dimensional models and $D$ branes. Finally, some prospects for observational tests of these ideas are mentioned.We discuss the treatment of quantum-gravitational fluctuations in the space-time background as an `environment', using the formalism for open quantum-mechanical systems, which leads to a microscopic arrow of time. After reviewing briefly the open-system formalism, and the motivations for treating quantum gravity as an `environment', we present an example from general relativity and a general framework based on non-critical strings, with a Liouville field that we identify with time. We illustrate this approach with calculations in the contexts of two-dimensional models and $D$ branes. Finally, some prospects for observational tests of these ideas are mentioned.hep-th/9805120ACT-6-98CTP-TAMU-21-98OUTP-98-38-PACT-1998-6CERN-TH-98-153CTP-TAMU-98-21OUTP-98-38-Poai:cds.cern.ch:3552521998-05-20
spellingShingle Particle Physics - Theory
Ellis, John R.
Mavromatos, N.E.
Nanopoulos, Dimitri V.
A Microscopic Liouville Arrow of Time
title A Microscopic Liouville Arrow of Time
title_full A Microscopic Liouville Arrow of Time
title_fullStr A Microscopic Liouville Arrow of Time
title_full_unstemmed A Microscopic Liouville Arrow of Time
title_short A Microscopic Liouville Arrow of Time
title_sort microscopic liouville arrow of time
topic Particle Physics - Theory
url https://dx.doi.org/10.1016/S0960-0779(98)00152-0
http://cds.cern.ch/record/355252
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