Phase diagram and quench dynamics of the Cluster-XY spin chain
Quantum Physics
2017-11-30 v4 Statistical Mechanics
Abstract
We study the complete phase space and the quench dynamics of an exactly solvable spin chain, the cluster-XY model. In this chain, the cluster term and the XY couplings compete to give a rich phase diagram. The phase diagram is studied by means of the quantum geometric tensor. We study the time evolution of the system after a critical quantum quench using the Loschmidt echo. The structure of the revivals after critical quantum quenches presents a non trivial behavior depending on the phase of the initial state and the critical point.
Cite
@article{arxiv.1112.4414,
title = {Phase diagram and quench dynamics of the Cluster-XY spin chain},
author = {Sebastian Montes and Alioscia Hamma},
journal= {arXiv preprint arXiv:1112.4414},
year = {2017}
}
Comments
Some references added. Better looking plots. Some paragraphs were rewritten for readibility