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arXiv · 1305.0468

Stationary behaviour of observables after a quantum quench in the spin-1/2 Heisenberg XXZ chain

Maurizio Fagotti·Fabian H. L. Essler
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Abstract

We consider a quantum quench in the spin-1/2 Heisenberg XXZ chain. At late times after the quench it is believed that the expectation values of local operators approach time-independent values, that are described by a generalized Gibbs ensemble. Employing a quantum transfer matrix approach we show how to determine short-range correlation functions in such generalized Gibbs ensembles for a class of initial states.

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Maurizio Fagotti, Fabian H. L. Essler. 2013-07-30. Stationary behaviour of observables after a quantum quench in the spin-1/2 Heisenberg XXZ chain. https://doi.org/10.1088/1742-5468%2F2013%2F07%2Fp07012

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