THERMAL FIELD THEORY IN NON-EQUILIBRIUM STATES

DOI10.1142/S0217979296000696zbMATH Open1229.82114arXivhep-ph/9511202MaRDI QIDQ3106758

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Publication date: 29 December 2011

Published in: International Journal of Modern Physics B (Search for Journal in Brave)

Abstract: Conventional transport theory is not really applicable to non-equilibrium systems which exhibit strong quantum effects. We present two different approaches to overcome this problem. Firstly we point out how transport equations may be derived that incorporate a nontrivial spectral function as a typical quantum effect, and test this approach in a toy model of a strongly interacting degenerate plasma. Secondly we explore a path to include non-equilibrium effects into quantum field theory through momentum mixing transformations in Fock space. Although the two approaches are completely orthogonal, they lead to the same coherent conclusion.

Full work available at URL: https://arxiv.org/abs/hep-ph/9511202

Mathematics Subject Classification ID

Quantum field theory; related classical field theories (81T99) Quantum dynamics and nonequilibrium statistical mechanics (general) (82C10)

Related Items (8)

On normal ordering and canonical transformations in thermal field theory ⋮ Non-Equilibrium Thermo-Field Dynamics for a Fourth-Order Hamiltonian ⋮ Nonequilibrium thermo field dynamics for relativistic complex scalar and Dirac fields ⋮ Thermo field dynamics in time representation ⋮ Asymptotic dynamics of thermal quantum fields ⋮ Equilibrium states in thermal field theory and in algebraic quantum field theory ⋮ Leontovich relations in thermal field theory ⋮ Theory of Non-Equilibirum States Driven by Constant Electromagnetic Fields

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