Dynamics of Gauge Fields at High Temperature

[摘要] An effective description of dynamical Bose fields is provided by the classical (high-temperature) limit of thermal field theory.,The main subject of this thesis is to improve the ensuing classical field theory, that is, to include the dominant quantum,corrections and to add counter terms for the Rayleigh-Jeans divergences. The dominant quantum corrections are the well-known,hard thermal loops. After a diagrammatic calculation of the HTL photon self-energy in QED, a kinetic formulation of HTL's,is given, following the work of Blaizot and Iancu. It is shown that the classical HTL equation of motion is consistent with,the classical statistical theory, provided a random noise term is added.

[发布机构] University of Amterdam