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Long range correlations in the non-equilibrium quantum relaxation of a spin chain

F. Igloi·H. Rieger
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Abstract

We consider the non-stationary quantum relaxation of the Ising spin chain in a transverse field of strength h. Starting from a homogeneously magnetized initial state the system approaches a stationary state by a process possessing quasi long range correlations in time and space, independent of the value of $h$. In particular the system exhibits aging (or lack of time translational invariance on intermediate time scales) although no indications of coarsening are present.

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BibTeXRIS

F. Igloi, H. Rieger. 2000-03-11. Long range correlations in the non-equilibrium quantum relaxation of a spin chain. https://doi.org/10.1103/physrevlett.85.3233

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