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arXiv 2207.08910hep-thcond-mat.str-elhep-lat
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格点-连续统对应的纠缠熵

Entanglement Entropy across the Lattice-Continuum Correspondence

Djordje Radicevic

摘要:

本文根据最近发展起来的晶格-连续体对应,重新审视了自由场纠缠熵的标准计算。这种对应关系提供了一种从完全正则化的格点理论中提取近似连续量子场论的显式方法。这个处方将在这里扩展到子区域代数,它将显示如何熵的连续玻色子和费米子理论可以计算工作纯粹与晶格量。这给出了一个清晰的图片分歧的起源纠缠熵,同时也提出了一个简洁而详细的食谱计算这个重要的数量在连续理论。

英文摘要:

This paper revisits standard calculations of free field entanglement entropy in light of the newly developed lattice-continuum correspondence. This correspondence prescribes an explicit method to extract an approximately continuum quantum field theory out of a fully regularized lattice theory. This prescription will here be extended to subregion algebras, and it will be shown how entropies of continuum boson and fermion theories can be computed by working purely with lattice quantities. This gives a clear picture of the origin of divergences in entanglement entropy while also presenting a concise and detailed recipe for calculating this important quantity in continuum theories.

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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