Monogamy quantum correlation near the quantum phase transitions in the two-dimensional XY spin systems*

Project supported by the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20171397), the National Natural Science Foundation of China (Grant Nos. 11535004, 11375086, 1175085, and 11120101005), the Foundation for Encouragement of College of Sciences (Grant No. LYLZJJ1616), and the Pre-research Foundation of Army Engineering University of PLA.

Qin Meng1, †, Ren Zhongzhou2, 3, Zhang Xin2
       

(color online) The change of δ (a) and Δ (b) of the model versus γ at different QRG steps. The plot colors mean the same as before.