论文标题
Spin-1/2中的双分式纠缠，由相同的三角双锥体斑块组成
Bipartite entanglement in the spin-1/2 Ising-Heisenberg planar lattice constituted of identical trigonal bipyramidal plaquettes
论文作者
论文摘要
在旋转$ 1/2 $ 1/2 $ 1/2 $ 1/2 $ 1/2 $ 1/2 $ 1/2的平面晶格中进行了严格检查。结果表明，同一斑块的海森伯格旋转在两倍变化的量子基态纠结的两倍上，是宏观上脱位的量子性手性手性的旋转。带有手性特征的两分纠缠完全消失在模型的临界温度下方或完全消失，而没有手性的纠缠甚至可能甚至超过模型的临界温度。同意的非单调温度变化清楚地证明了纠缠的海森伯格状态的激活，也高于经典的基态及其在模型临界温度以上的重新表现。
The bipartite entanglement is rigorously examined in the spin-$1/2$ Ising-Heisenberg planar lattice composed of identical inter-connected bipyramidal plaquettes at zero and finite temperatures using the quantity called concurrence. It is shown that the Heisenberg spins of the same plaquette are twice stronger entangled in the two-fold degenerate quantum ground state than in the macroscopically degenerate quantum chiral one. The bipartite entanglement with chiral features completely disappears below or exactly at the critical temperature of the model, while that with no chirality may survive even above the critical temperature of the model. Non-monotonous temperature variations of the concurrence clearly evidence the activation of the entangled Heisenberg states also above classical ground state as well as their re-appearance above the critical temperature of the model.
