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arXiv 1906.00641hep-thquant-ph
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场空间纠缠熵的微扰计算

Perturbative calculation of field space entanglement entropy

Center for Theoretical Physics, College of Physical Science and Technology(物理科学与技术学院理论物理中心);Sichuan University(四川大学)

James Brister

AI总结:

本文提出了一种计算场空间纠缠熵的方法,解决了微扰计算中出现的发散问题,并通过简单例子验证了该方法的有效性。

摘要:

我们提出了一种通用方法,用于计算两个相互作用量子场之间纠缠熵的微扰值。此前尝试微扰计算这一量时遇到了看似病态的发散现象;我们解释了这种发散是由于不恰当截断级数展开所致,并给出了避免此问题的处方。随后我们将该方法应用于两个质量混合标量场的简单例子。

英文摘要:

We present a general method for the perturbative calculation of the entanglement entropy between two interacting quantum fields. Previous attempts at calculating this quantity perturbatively have encountered a seemingly pathological divergence; we explain why this divergence is a result of improperly truncating a series expansion and give a prescription for avoiding this problem. We then apply our method to a simple example of two mass-mixing scalar fields.

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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