Factorization and Criticality in the Anisotropic XY Chain via Correlations
Barış Çakmak, Göktuğ Karpat, F. F. Fanchini · Entropy · 2015
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 a transverse magnetic field. We compare the ability of the considered measures to correctly detect or estimate the quantum critical point and the non-trivial factorization point possessed by the spin chain.