Dynamical phase transition in correlated fermionic lattice systems
arXiv:0904.0976 · doi:10.1103/PhysRevLett.103.056403
Abstract
We use non-equilibrium dynamical mean-field theory to demonstrate the existence of a critical interaction in the real-time dynamics of the Hubbard model after an interaction quench. The critical point is characterized by fast thermalization and separates weak-coupling and strong-coupling regimes in which the relaxation is delayed due to prethermalization on intermediate timescales. This dynamical phase transition should be observable in experiments on trapped fermionic atoms.
4 pages, 3 figures
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