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cond-mat.stat-mech2022★ 3 cited
Ground-state and thermal entanglements in a non-Hermitian XY system with real and imaginary magnetic fields
Yue Li, Pan-Pan Zhang, Li-Zhen Hu +2
In this manuscript, we study the non-Hermitian spin-1/2 XY model in the presence of the alternating, imaginary and transverse magnetic fields. For the two-site spin system, we solv…
cond-mat.stat-mech2021
Phase diagrams, quantum correlations and critical phenomena of antiferromagnetic Heisenberg model on diamond-type hierarchical lattices
Pan-Pan Zhang, Zhong-Yang Gao, Yu-Liang Xu +2
The spin-1/2 antiferromagnetic Heisenberg systems are studied on three typical diamond-type hierarchical lattices (systems A, B and C) with fractal dimensions 1.63, 2 and 2.58, res…