Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-09
Phys.Rev. D53 (1996) 5799-5809
Physics
High Energy Physics
High Energy Physics - Phenomenology
27 pages, revtex format, 5 postscript figures included using epsf.sty
Scientific paper
10.1103/PhysRevD.53.5799
The evaluation of hydrodynamic transport coefficients in relativistic field theory, and the emergence of an effective kinetic theory description, is examined. Even in a weakly-coupled scalar field theory, interesting subtleties arise at high temperatures where thermal renormalization effects are important. In this domain, a kinetic theory description in terms of the fundamental particles ceases to be valid, but one may derive an effective kinetic theory describing excitations with temperature dependent properties. While the shear viscosity depends on the elastic scattering of typical excitations whose kinetic energies are comparable to the temperature, the bulk viscosity is sensitive to particle non-conserving processes at small energies. As a result, the shear and the bulk viscosities have very different dependence on the interaction strength and temperature, with the bulk viscosity providing an especially sensitive test of the validity of an effective kinetic theory description.
Jeon Sangyong
Yaffe Laurence G.
No associations
LandOfFree
From Quantum Field Theory to Hydrodynamics: Transport Coefficients and Effective Kinetic Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with From Quantum Field Theory to Hydrodynamics: Transport Coefficients and Effective Kinetic Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From Quantum Field Theory to Hydrodynamics: Transport Coefficients and Effective Kinetic Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-207479