Primordial magnetic fields from string cosmology

Sufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a dynamical dilaton background. The success of the mechanism depends crucially on two features of the so-call...

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Detalles Bibliográficos
Autores principales: Gasperini, M., Giovannini, Massimo, Veneziano, G.
Lenguaje:eng
Publicado: 1995
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.75.3796
http://cds.cern.ch/record/280345
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author Gasperini, M.
Giovannini, Massimo
Veneziano, G.
author_facet Gasperini, M.
Giovannini, Massimo
Veneziano, G.
author_sort Gasperini, M.
collection CERN
description Sufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a dynamical dilaton background. The success of the mechanism depends crucially on two features of the so-called pre-big-bang scenario, an early epoch of dilaton-driven inflation at very small coupling, and a sufficiently long intermediate stringy era preceding the standard radiation-dominated evolution.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
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spelling cern-2803452020-07-23T02:50:28Zdoi:10.1103/PhysRevLett.75.3796http://cds.cern.ch/record/280345engGasperini, M.Giovannini, MassimoVeneziano, G.Primordial magnetic fields from string cosmologyParticle Physics - TheorySufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a dynamical dilaton background. The success of the mechanism depends crucially on two features of the so-called pre-big-bang scenario, an early epoch of dilaton-driven inflation at very small coupling, and a sufficiently long intermediate stringy era preceding the standard radiation-dominated evolution.Sufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a dynamical dilaton background. The success of the mechanism depends crucially on two features of the so-called pre-big-bang scenario, an early epoch of dilaton-driven inflation at very small coupling, and a sufficiently long intermediate stringy era preceding the standard radiation-dominated evolution.hep-th/9504083CERN-TH-95-85CERN-TH-95-085CERN-TH-95-85DFTT-95-26oai:cds.cern.ch:2803451995-04-17
spellingShingle Particle Physics - Theory
Gasperini, M.
Giovannini, Massimo
Veneziano, G.
Primordial magnetic fields from string cosmology
title Primordial magnetic fields from string cosmology
title_full Primordial magnetic fields from string cosmology
title_fullStr Primordial magnetic fields from string cosmology
title_full_unstemmed Primordial magnetic fields from string cosmology
title_short Primordial magnetic fields from string cosmology
title_sort primordial magnetic fields from string cosmology
topic Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevLett.75.3796
http://cds.cern.ch/record/280345
work_keys_str_mv AT gasperinim primordialmagneticfieldsfromstringcosmology
AT giovanninimassimo primordialmagneticfieldsfromstringcosmology
AT venezianog primordialmagneticfieldsfromstringcosmology

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