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arXiv 1007.0993hep-thcond-mat.stat-mechquant-ph
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对纠缠熵的一些可计算贡献

Some Calculable Contributions to Entanglement Entropy

Mark P. Hertzberg, Frank Wilczek

摘要:

纠缠熵作为量子系统的中心性质出现在广泛的物理领域。然而,它的精确值往往对未知的微观物理敏感,使其无法计算。通过考虑参数依赖于相关长度,我们提取有限的,可计算的贡献的纠缠熵之间的内部和外部的任意形状的空间域的标量场。领先的长期是成比例的划分边界的面积,我们还提取有限的subleading贡献的一个字段中定义的散装内部的波导在3+1维,包括条款成比例的波导的横截面几何形状,其面积,周长,和集成曲率。我们还考虑相关的数量在临界状态,并建议一类系统,这些贡献可能是可测量的。

英文摘要:

Entanglement entropy appears as a central property of quantum systems in broad areas of physics. However, its precise value is often sensitive to unknown microphysics, rendering it incalculable. By considering parametric dependence on correlation length, we extract finite, calculable contributions to the entanglement entropy for a scalar field between the interior and exterior of a spatial domain of arbitrary shape. The leading term is proportional to the area of the dividing boundary; we also extract finite subleading contributions for a field defined in the bulk interior of a waveguide in 3+1 dimensions, including terms proportional to the waveguide's cross-sectional geometry; its area, perimeter length, and integrated curvature. We also consider related quantities at criticality and suggest a class of systems for which these contributions might be measurable.

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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