Nonthermal fixed points and the functional renormalization group
arXiv:0809.5208 · doi:10.1016/j.nuclphysb.2008.12.017
Abstract
Nonthermal fixed points represent basic properties of quantum field theories, in addition to vacuum or thermal equilibrium fixed points. The functional renormalization group on a closed real-time path provides a common framework for their description. For the example of an O(N) symmetric scalar theory it reveals a hierarchy of fixed point solutions, with increasing complexity from vacuum and thermal equilibrium to nonequilibrium.
32 pages, Nucl. Phys. B version (minor changes of wordings)
References in corpus (5)
- Applications of Field-Theoretic Renormalization Group Methods to Reaction-Diffusion Problems
- Non-thermal fixed points: effective weak-coupling for strongly correlated systems far from equilibrium
- Quantum versus classical statistical dynamics of an ultracold Bose gas
- Functional renormalisation group approach to far-from-equilibrium quantum field dynamics
- Effective convergence of the 2PI-1/N expansion for nonequilibrium quantum fields