Factorization and Criticality in the Anisotropic XY Chain via Correlations

Abstract

In this review, we discuss the zero and finite temperature behavior of various bipartite quantum and total correlation measures, the skew information-based quantum coherence, and the local quantum uncertainty in the thermal ground state of the one-dimensional anisotropic XY model in transverse magnetic field. We compare the ability of considered measures to correctly detect or estimate the quantum critical point and the non-trivial factorization point possessed by the spin chain.

arXiv comment29 pages, 8 figures. A review paper accepted for publication in the special issue Entanglement Entropy in the journal Entropy

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