Non-analytic behavior of the Loschmidt echo in XXZ spin chains: Exact results
We address the computation of the Loschmidt echo in interacting integrable spin chains after a quantum quench. We focus on the massless regime of the XXZ spin-1/2 chain and present exact results for the dynamical free energy (Loschmidt echo per site) for a special class of integrable initial states....
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
Elsevier
2018
|