Dynamical correlations after a quantum quench.

Journal article

We consider dynamic (non-equal-time) correlation functions of local observables after a quantum quench. We show that, in the absence of long-range interactions in the final Hamiltonian, the dynamics is determined by the same ensemble that describes static (equal-time) correlations. For many integrable models, static correlation functions of local observables after a quantum quench relax to stationary values, which are described by a generalized Gibbs ensemble. The same generalized Gibbs ensem...

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Authors: Essler, F; Evangelisti, S; Fagotti, M

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 109
• Issue: 24
• Pages: 247206
• Publication date: 2012-12-01
• DOI: 10.1103/physrevlett.109.247206
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: cond-mat.stat-mech; quant-ph