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Título:
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Brane worlds at the LHC: branons and KK gravitons
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Autores:
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Ruiz Cembranos, José Alberto ;
Delgado López, Rafael ;
Dobado González, Antonio
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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, 2013-10-29
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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/24014/1/DobadoAntonio108libre.pdf
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