Pre-bangian origin of our entropy and time arrow

I argue that, in the chaotic version of string cosmology proposed recently, classical and quantum effects generate, at the time of exit to radiation, the correct amount of entropy to saturate a Hubble (or holography) entropy bound (HEB) and to identify, within our own Universe, the arrow of time. De...

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Detalles Bibliográficos
Autor principal: Veneziano, G.
Lenguaje:eng
Publicado: 1999
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(99)00267-1
http://cds.cern.ch/record/379681
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author Veneziano, G.
author_facet Veneziano, G.
author_sort Veneziano, G.
collection CERN
description I argue that, in the chaotic version of string cosmology proposed recently, classical and quantum effects generate, at the time of exit to radiation, the correct amount of entropy to saturate a Hubble (or holography) entropy bound (HEB) and to identify, within our own Universe, the arrow of time. Demanding that the HEB be fulfilled at all times forces a crucial "branch change" to occur, and the so-called string phase to end at a critical value of the effective Planck mass, in agreement with previous conjectures.
id cern-379681
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-3796812023-03-14T16:59:15Zdoi:10.1016/S0370-2693(99)00267-1http://cds.cern.ch/record/379681engVeneziano, G.Pre-bangian origin of our entropy and time arrowParticle Physics - TheoryI argue that, in the chaotic version of string cosmology proposed recently, classical and quantum effects generate, at the time of exit to radiation, the correct amount of entropy to saturate a Hubble (or holography) entropy bound (HEB) and to identify, within our own Universe, the arrow of time. Demanding that the HEB be fulfilled at all times forces a crucial "branch change" to occur, and the so-called string phase to end at a critical value of the effective Planck mass, in agreement with previous conjectures.I argue that, in the chaotic version of string cosmology proposed recently, classical and quantum effects generate, at the time of exit to radiation, the correct amount of entropy to saturate a Hubble (or holography) entropy bound (HEB) and to identify, within our own Universe, the arrow of time. Demanding that the HEB be fulfilled at all times forces a crucial "branch change" to occur, and the so-called string phase to end at a critical value of the effective Planck mass, in agreement with previous conjectures.hep-th/9902126CERN-TH-99-32CERN-TH-99-032oai:cds.cern.ch:3796811999-02-18
spellingShingle Particle Physics - Theory
Veneziano, G.
Pre-bangian origin of our entropy and time arrow
title Pre-bangian origin of our entropy and time arrow
title_full Pre-bangian origin of our entropy and time arrow
title_fullStr Pre-bangian origin of our entropy and time arrow
title_full_unstemmed Pre-bangian origin of our entropy and time arrow
title_short Pre-bangian origin of our entropy and time arrow
title_sort pre-bangian origin of our entropy and time arrow
topic Particle Physics - Theory
url https://dx.doi.org/10.1016/S0370-2693(99)00267-1
http://cds.cern.ch/record/379681
work_keys_str_mv AT venezianog prebangianoriginofourentropyandtimearrow

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