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arXiv quant-ph/0602233quant-ph
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量子自旋链的纠缠性质

Entanglement properties of quantum spin chains

Stein Olav Skrøvseth

摘要:

我们研究了有限大小的1+1维Ising自旋链的纠缠特性,并展示了这些特性如何标度以及如何利用它们来重构基态波函数.即使在临界点,施密特分解中也很少有项对精确的基态和熵等物理性质有贡献。然而,由于施密特分解中的低位态,这里的纠缠是突出的。

英文摘要:

We investigate the entanglement properties of a finite size 1+1 dimensional Ising spin chain, and show how these properties scale and can be utilized to reconstruct the ground state wave function. Even at the critical point, few terms in a Schmidt decomposition contribute to the exact ground state, and to physical properties such as the entropy. Nevertheless the entanglement here is prominent due to the lower-lying states in the Schmidt decomposition.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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