RT Journal Article
T1 Shear and bulk viscosities of a photon gas at low temperature
A1 Llanes Estrada, Felipe José
A1 Dobado González, Antonio
A1 Torres Rincón, Juan Miguel
AB 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.
PB American Physical Society
SN 1550-7998
YR 2013
FD 2013-09-12
LK https://hdl.handle.net/20.500.14352/33383
UL https://hdl.handle.net/20.500.14352/33383
LA eng
NO ©  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.
NO J. M. T.-R
DS Docta Complutense
RD 11 may 2025