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quant-ph2005★ 27 cited
Entanglement properties in (1/2,1) mixed-spin Heisenberg systems
Zhe Sun, XiaoGuang Wang, AnZi Hu +1
By using the concept of negativity, we investigate entanglement in (1/2,1) mixed-spin Heisenberg systems. We obtain the analytical results of entanglement in small isotropic Heisen…
quant-ph2005★ 11 cited
Entanglement in spin-1/2 dimerized Heisenberg systems
Zhe Sun, XiaoGuang Wang, AnZi Hu +1
We study entanglement in dimerized Heisenberg systems. In particular, we give exact results of ground-state pairwise entanglement for the four-qubit model by identifying a Z_2 symm…