Time development of conformal field theories associated with <i>L</i><sub>1</sub> and <i>L</i><sub>-1</sub> operators

Time development of conformal field theories associated with <i>L</i><sub>1</sub> and <i>L</i><sub>-1</sub> operators
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与<i>L</i><sub>1</sub>和<i>L</i><sub>-1</sub>算子相关的共形场论的时间发展

DOI：
10.1088/1751-8121/ab8c63
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发表时间：
2020
期刊：
Journal of Physics A: Mathematical and Theoretical
影响因子：
--
通讯作者：
Tada Tsukasa
Tada Tsukasa
中科院分区：
--
文献类型：
--
作者：
Liu Xun;Tada Tsukasa;Tada Tsukasa

文献摘要

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在这项研究中，我们研究了由L1和L− 1算子引起的二维共形场论的非常规时间发展的后果，采用了以前在正弦平方形变研究中发展的形式。我们发现Virasoro代数的保持需要在不动点附近存在一个截止。通过截断引入尺度，使得以自然和直接的方式重新获得纠缠熵的公式成为可能。
In this study, we examined consequences of unconventional time development of two-dimensional conformal field theory induced by the L 1 and L− 1 operators, employing the formalism previously developed in a study of sine-square deformation. We discovered that the retainment of the Virasoro algebra requires the presence of a cut-off near the fixed points. The introduction of a scale by the cut-off makes it possible to recapture the formula for entanglement entropy in a natural and straightforward manner.