Factorization and criticality in the anisotropic XY chain via correlations
Entropy. Basel: Mdpi Ag, v. 17, n. 2, p. 790-817, 2015.
Universidade Estadual Paulista (UNESP)
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.