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Título:
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Shear and bulk viscosities of a photon gas at low temperature
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Autores:
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Llanes Estrada, Felipe José ;
Dobado González, Antonio ;
Torres Rincón, Juan M.
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2013-09-12
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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We explore the viscosities of a photon gas by means of the Euler-Heisenberg effective theory and quantum electrodynamics at zero electron chemical potential. We find parametric estimates that show a very large shear viscosity and an extremely small bulk viscosity (reflecting the very weak coupling simultaneously with a very approximate dilatation invariance). The system is of some interest because it exemplifies very neatly the influence of the breaking of scale invariance on the bulk viscosity.
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En línea:
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https://eprints.ucm.es/id/eprint/23583/1/Llanes-Estrada_FJ77libre.pdf
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