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arXiv 1404.7616quant-phcond-mat.other
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热力学能隙自旋系统纠缠面积定律成立的充分条件

Sufficient Condition for Entanglement Area Laws in Thermodynamically Gapped Spin Systems

Jaeyoon Cho

摘要:

我们考虑一般的局部相互作用的任意维晶格自旋系统,任何系统大小的间隙。在合理的条件下,我们证明了这类系统的非简并基态服从纠缠面积定律。在这样做的过程中,我们提供了一个直观的图片上的光谱间隙如何限制的相关性,一个基态可以容纳,并导致这样一个特殊的功能。

英文摘要:

We consider general locally-interacting arbitrary-dimensional lattice spin systems that are gapped for any system size. We show under reasonable conditions that nondegenerate ground states of such systems obey the entanglement area law. In so doing, we offer an intuitive picture on how a spectral gap restricts the correlations that a ground state can accommodate and leads to such a special feature.

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