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arXiv 2302.08209hep-thcond-mat.stat-mechquant-ph
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具有界面缺陷的自由共形理论的全计数统计与对称分辨纠缠

Full counting statistics and symmetry resolved entanglement for free conformal theories with interface defects

Luca Capizzi, Sara Murciano, Pasquale Calabrese

AI总结:

本文研究通过共形界面耦合的两类一维临界自由理论,利用缺陷几何与均匀几何的关系,解析给出电荷涨落的全计数统计、带电矩和对称分辨Rényi熵,并通过数值验证。

摘要:

我们考虑两种一维临界自由理论的基态,它们通过一个共形界面耦合在一起。它们具有内部 $U(1)$ 全局对称性,我们研究杂质两侧电荷的量子涨落,给出全计数统计、约化密度矩阵的带电矩以及对称分辨 Rényi 熵的解析预测。我们的方法基于带缺陷几何与均匀几何之间的关系,它提供了一种刻画限制在两种物种之一上的关联函数谱性质的方法。我们的解析预测经过数值检验,发现完全一致。

英文摘要:

We consider the ground state of two species of one-dimensional critical free theories coupled together via a conformal interface. They have an internal $U(1)$ global symmetry and we investigate the quantum fluctuations of the charge across the impurity, giving analytical predictions for the full counting statistics, the charged moments of the reduced density matrix and the symmetry resolved Rényi entropies. Our approach is based on the relation between the geometry with the defect and the homogeneous one, and it provides a way to characterise the spectral properties of the correlation functions restricted to one of the two species. Our analytical predictions are tested numerically, finding a perfect agreement.

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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