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Shear and bulk viscosities of a photon gas at low temperature

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dc.contributor.authorLlanes Estrada, Felipe José
dc.contributor.authorDobado González, Antonio
dc.contributor.authorTorres Rincón, Juan Miguel
dc.date.accessioned2023-06-19T13:22:19Z
dc.date.available2023-06-19T13:22:19Z
dc.date.issued2013-09-12
dc.description© 2013 American Physical Society. We thank useful conversations with T. Schaefer. This work was supported by Spanish Grants No. FPA2010-16963 and No. FPA2011-27853-C02-01. J.M.T.-R. is funded by Grant No. FP7 PEOPLE-2011-CIG under Contract No. PCIG09-GA-2011-291679.
dc.description.abstractWe 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.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipJ. M. T.-R
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/23583
dc.identifier.doi10.1103/PhysRevD.88.053006
dc.identifier.issn1550-7998
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevD.88.053006
dc.identifier.relatedurlhttp://prd.aps.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/33383
dc.issue.number5
dc.journal.titlePhysical Review D
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectIDFPA2011-27853-C02-01
dc.relation.projectIDFP7-PEOPLE-2011-CIG
dc.relation.projectIDPCIG09-GA-2011-291679
dc.relation.projectIDFPA2010-16963
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordAstronomy
dc.subject.keywordAstrophysics
dc.subject.keywordPhysics
dc.subject.keywordParticles
dc.subject.keywordFields
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleShear and bulk viscosities of a photon gas at low temperature
dc.typejournal article
dc.volume.number88
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