Description 
1 online resource (xxv, 215 pages) : illustrations (some color) 
Series 
Springer Theses, 21905053 

Springer theses, 21905053

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  NonHomogeneous Backgrounds  The Thermodynamic Equilibrium Limit 
Summary 
The author develops a new perturbative formalism of nonequilibrium thermal quantum field theory for nonhomogeneous backgrounds. As a result of this formulation, the author is able to show how socalled 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 nonequilibrium field theory, built from modified Feynman rules that are manifestly timedependent 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 loopwise sense, these evolution equations capture nonequilibrium dynamics on all timescales, systematically describing energyviolating processes and the nonMarkovian 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.


Physique.


Astronomie.


Perturbation (Quantum dynamics)


Quantum field theory.


Thermodynamic equilibrium.

Genre/Form 
Academic theses.


Academic theses.


Thèses et écrits académiques.

Form 
Electronic book

ISBN 
9783319011868 

3319011863 

3319011855 

9783319011851 
