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arXiv · 1112.4414

Phase diagram and quench dynamics of the Cluster-XY spin chain

Sebastian Montes·Alioscia Hamma
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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.

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Sebastian Montes, Alioscia Hamma. 2012-08-04. Phase diagram and quench dynamics of the Cluster-XY spin chain. https://doi.org/10.1103/physreve.86.021101

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