36 citations · 90 across the 7 of their papers we have counts for
5 papers · 1 filter
Global quantum discord in infinite quantum spin chains
Zhao-Yu Sun, Yan-E Liao, Bin Guo +10
In this paper, we study global quantum discord (GQD) in infinite-size spin chains. For this purpose, in the framework of matrix product states (MPSs), we propose an effective proce…
Multi-partite quantum nonlocality and Bell-type inequalities in an infinite-order quantum phase transition of the one-dimensional spin-1/2 XXZ chain
Zhao-Yu Sun, Shuang Liu, Hai-Lin Huang +7
In this paper, combined with infinite time-evolving block decimation (iTEBD) algorithm and Bell-type inequalities, we investigate multi-partite quantum nonlocality in an infinite o…
Violation of Bell inequality in perfect translation invariant systems
Zhao-Yu Sun, Yu-Ying Wu, Hai-Lin Huang +2
Bell inequalities and nonlocality have been widely studied in one-dimensional quantum systems. As a kind of quantum correlation, it is expected that bipartite nonlocaity should be…
Bell inequality and nonlocality in a two-dimensional mixed spin systems
Z. Y. Sun, Y. Y. Wu, H. L. Huang +1
In this paper, we use Bell inequality and nonlocality to study the bipartite correlation in an exactly soluble two-dimensional mixed spin system. Bell inequality turns out to be a…
Bell-CHSH function approach to quantum phase transitions in matrix product systems
Zhao-Yu Sun, Hai-Lin Huang, Bo Wang
Recently, nonlocality and Bell inequalities have been used to investigate quantum phase transitions (QPTs) in low-dimensional quantum systems. Nonlocality can be detected by the Be…