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Book Cover
Author Millington, Peter, author

Title Thermal quantum field theory and perturbative non-equilibrium dynamics / Peter Millington
Published Cham : Springer, 2014


Description 1 online resource (xxv, 215 pages) : illustrations (some color)
Series Springer Theses, 2190-5053
Springer theses, 2190-5053
Contents Introduction to Part I -- Classical Prerequisites -- Quantum Statistical Mechanics -- Correlation Functions -- Imaginary Time Formalism -- The Scalar Field -- Introduction to Part II -- The CTP Formalism -- Non-Homogeneous Backgrounds -- The Thermodynamic Equilibrium Limit
Summary The author develops a new perturbative formalism of non-equilibrium thermal quantum field theory for non-homogeneous backgrounds. As a result of this formulation, the author is able to show how so-called pinch singularities can be removed, without resorting to ad hoc prescriptions, or effective resummations of absorptive effects. Thus, the author arrives at a diagrammatic approach to non-equilibrium field theory, built from modified Feynman rules that are manifestly time-dependent from tree level. This new formulation provides an alternative framework in which to derive master time evolution equations for physically meaningful particle number densities, which are valid to all orders in perturbation theory and to all orders in gradient expansion. Once truncated in a loop-wise sense, these evolution equations capture non-equilibrium dynamics on all time-scales, systematically describing energy-violating processes and the non-Markovian evolution of memory effects
Notes Ph. D. University of Manchester 2012
Bibliography Includes bibliographical references and index
Notes English
Online resource; title from PDF title page (SpringerLink, viewed November 4, 2013)
Subject Quantum field theory.
Perturbation (Quantum dynamics)
Thermodynamic equilibrium.
SCIENCE -- Energy.
SCIENCE -- Mechanics -- General.
SCIENCE -- Physics -- General.
Perturbation (Quantum dynamics)
Quantum field theory.
Thermodynamic equilibrium.
Genre/Form Academic theses.
Academic theses.
Thèses et écrits académiques.
Form Electronic book
ISBN 9783319011868