We compute the nonequilibrium real-time evolution of an O(N)-symmetric scalar quantum field theory from a systematic 1/N expansion of the 2PI effective action to next-to-leading order, which includes scattering and memory effects. In contrast to the standard 1/N expansion of the 1PI effective action
Out-of-equilibrium quantum field dynamics in external fields
β Scribed by F. J. Cao
- Book ID
- 111619035
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 143 KB
- Volume
- 31
- Category
- Article
- ISSN
- 1434-601X
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π SIMILAR VOLUMES
We consider the initial value problem and its renormalisation in the framework of the twoparticle-irreducible (2PI) effective action. We argue that in the case of appropriately chosen selfconsistent initial conditions, the counterterms needed to renormalise the system in equilibrium are also suffici
Quantum field theory is frequently approached from the perspective of particle physics. This book adopts a more general point of view and includes applications of condensed matter physics. Written by a highly respected writer and researcher, it first develops traditional concepts, including Feynman