Factorization and Criticality in the Anisotropic XY Chain via Correlations

Entropy

Barış ౺kmak¹  Göktuğ Karpat² 

[1] Faculdade de Ciências, UNESP - Universidade Estadual Paulista, Bauru, SP, 17033-360, Brazil;

关键词: XY spin chain;    quantum phase transitions;    quantum correlations;    total correlations;    quantum coherence;    Wigner–Yanase skew information;   

DOI  :  10.3390/e17020790

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland