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Thermal Quantum Field Theory and Perturbative Non-Equilibrium Dynamics: Springer Theses

Autor Peter Millington
en Limba Engleză Hardback – 14 noi 2013
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
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Specificații

ISBN-13: 9783319011851
ISBN-10: 3319011855
Pagini: 244
Ilustrații: XXV, 215 p. 28 illus., 10 illus. in color.
Dimensiuni: 155 x 235 x 20 mm
Greutate: 0.52 kg
Ediția:2014
Editura: Springer International Publishing
Colecția Springer
Seria Springer Theses

Locul publicării:Cham, Switzerland

Public țintă

Research

Cuprins

Introduction.- Equilibrium Mechanics.- Introduction to Part I.- Classical Prerequisites.- Quantum Statistical Mechanics.- Correlation Functions.- Imaginary Time Formalism.- The Scalar Field.- Non-equilibrium Mechanics.- Introduction to Part II.- The CTP Formalism.- Non-Homogeneous Backgrounds.- The Thermodynamic Equilibrium Limit.

Textul de pe ultima copertă

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

Caracteristici

Nominated as an Outstanding Ph.D. thesis by the University of Manchester, UK Provides a clear overview of prerequisite material from classical thermodynamics, classical and quantum statistical mechanics and equilibrium thermal field theory Includes extensive chapter-by-chapter bibliographies of further reading