Relaxation dynamics in the gapped XXZ spin-1/2 chain
| Authors | |
|---|---|
| Publication date | 2010 |
| Journal | New Journal of Physics |
| Volume | Issue number | 12 | 5 |
| Pages (from-to) | 055028 |
| Number of pages | 21 |
| Organisations |
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| Abstract | We study the dynamics of a quench-prepared domain wall state released into a system whose unitary time evolution is dictated by the Hamiltonian of the Heisenberg spin-1/2 gapped antiferromagnetic chain. Using exact wavefunctions and their overlaps with the domain wall state allows us to describe the release dynamics to high accuracy, up to the long-time limit, for finite as well as infinite systems. The results for the infinite system allow us to rigorously prove that the system in the gapped regime (Δ>1) cannot thermalize in the strict sense. |
| Document type | Article |
| Language | English |
| Published at | https://doi.org/10.1088/1367-2630/12/5/055028 |
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