1205.2211 (Pasquale Calabrese et al.)

Quantum Quench in the Transverse Field Ising Chain II: Stationary State
Properties    [PDF]

Pasquale Calabrese, Fabian H. L. Essler, Maurizio Fagotti

We consider the stationary state properties of the reduced density matrix as well as spin-spin correlation functions after a sudden quantum quench of the magnetic field in the transverse field Ising chain. We demonstrate that stationary state properties are described by a generalized Gibbs ensemble. We discuss the approach to the stationary state at late times.

View original: http://arxiv.org/abs/1205.2211