标题： 一维和二维量子伊辛模型和XXZ模型纠缠性质的数值研究 显示英文标题

标题： Numerical studies of entanglement properties in one- and two-dimensional quantum Ising and XXZ models

摘要： 我们研究了无限一维和二维自旋-1/2量子伊辛模型和XXZ模型的纠缠性质。使用张量网络方法（一维矩阵乘积态MPS和二维张力演化重整化群TERG与张量收缩重整化群CTMRG）来模拟所研究模型的基态。计算了不同的纠缠度量，如单点纠缠熵、单配性tangle、形成和辅助纠缠、负值以及每条键的纠缠，并比较了它们确定量子相变的“表征能力”。特别强调了对纠缠单配性性质的研究。 显示英文摘要

摘要： We investigate entanglement properties of infinite 1D and 2D spin-1/2 quantum Ising and XXZ models. Tensor network methods (MPS in 1D and TERG and CTMRG in 2D) are used to model the ground state of the studied models. Different entanglement measures, such as one-site entanglement entropy, one-tangle, concurrence of formation and assistance, negativity and entanglement per bond are calculated and their `characterizing power' to determine quantum phase transitions is compared. A special emphasis is made on the study of entanglement monogamy properties.