Multiple relaxation times in perturbed XXZ chain
We study numerically the relaxation of correlation functions in weakly perturbed integrable XXZ chain. While the decay of spin-current and energy-current correlations at zero magnetization are well described by single, but quite distinct, relaxation rates governed by the square of the perturbation s...
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| Format: | Article |
| Language: | English |
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SciPost
2022-08-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.13.2.013 |