Within the framework of relativistic quantum field theory, a novel method is established which allows for distinguishing non-equilibrium states admitting locally a thermodynamic interpretation. The basic idea is to compare these states with global equilibrium states (KMS states) by means of local th
Approach to non-equilibrium behaviour in quantum field theory
โ Scribed by J Kripfganz; H Perlt
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 865 KB
- Volume
- 191
- Category
- Article
- ISSN
- 0003-4916
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โฆ Synopsis
We study the real-time evolution of quantum field theoretic systems in non-equilibrium situations. Results are presented for the example of scalar 10' theory. The degrees of freedom are discretized by studying the system on a torus. Short-wavelength modes are integrated out to one-loop order. The long-wavelength modes considered to be. the relevant degrees of freedom are treated by semiclassical phase-space methods. ~TJ 1989 Academic PESS. hc.
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