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dc.contributor.author
Megevand, Ariel Hugo
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dc.date.available
2016-11-14T20:08:47Z
dc.date.issued
2013-07
dc.identifier.citation
Megevand, Ariel Hugo; Friction forces on phase transition fronts; Iop Publishing; Journal Of Cosmology And Astroparticle Physics; 2013; 7-2013; 45-77
dc.identifier.issn
1475-7516
dc.identifier.uri
http://hdl.handle.net/11336/8203
dc.description.abstract
In cosmological first-order phase transitions, the microscopic interaction of the phase transition fronts with non-equilibrium plasma particles manifests itself macroscopically as friction forces. In general, it is a nontrivial problem to compute these forces, and only two limits have been studied, namely, that of very slow walls and, more recently, ultra-relativistic walls which run away. In this paper we consider ultra-relativistic velocities and show that stationary solutions still exist when the parameters allow the existence of runaway walls. Hence, we discuss the necessary and sufficient conditions for the fronts to actually run away. We also propose a phenomenological model for the friction, which interpolates between the non-relativistic and ultra-relativistic values. Thus, the friction depends on two friction coefficients which can be calculated for specific models. We then study the velocity of phase transition fronts as a function of the friction parameters, the thermodynamic parameters, and the amount of supercooling.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Iop Publishing
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cosmological Phase Transitions
dc.subject
Primordial Gravitational Waves
dc.subject
Particle Physics - Cosmology Connection
dc.subject.classification
Física de Partículas y Campos
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Friction forces on phase transition fronts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-14T19:29:07Z
dc.journal.volume
2013
dc.journal.pagination
45-77
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Megevand, Ariel Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata; Argentina
dc.journal.title
Journal Of Cosmology And Astroparticle Physics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/1475-7516/2013/07/045
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1475-7516/2013/07/045
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1303.4233v2
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