Thermal Quantum Field Theory and Perturbative Non-Equilibrium Dynamics

Softcover Nachdruck of the original 1. Auflage 2014
ISBN: 978-3-319-37754-4
Verlag: Springer International Publishing

Buch, Englisch, 215 Seiten, Paperback, Format (B × H): 155 mm x 235 mm, Gewicht: 3752 g

Reihe: Springer Theses

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

Zielgruppe

Research

Autoren/Hrsg.

Millington, Peter

Fachgebiete

• Naturwissenschaften Physik Angewandte Physik Statistische Physik, Dynamische Systeme
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Kontinuumsmechanik
• Naturwissenschaften Physik Mechanik Kontinuumsmechanik, Strömungslehre
• Naturwissenschaften Physik Physik Allgemein Theoretische Physik, Mathematische Physik, Computerphysik

Inhaltsverzeichnis

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.