arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1502.01277hep-thcond-mat.stat-mechcond-mat.str-elhep-ph
收藏

薄壳层的引力坍缩:全息纠缠熵的时间演化

Gravitational collapse of thin shells: Time evolution of the holographic entanglement entropy

Ville Keranen, Hiromichi Nishimura, Stefan Stricker, Olli Taanila, Aleksi Vuorinen

摘要:

我们研究了AdS时空中引力坍缩的大质量壳层的动力学,并详细说明了如何确定穿过它们的极值曲面。结果被用来解决的全息纠缠熵的时间演化在强耦合的双重共形规范理论,这是被认为是表现出一个政权的线性增长的边界纠缠区的形状和状态方程的壳。我们的确切结果最后比较两个常用的近似方案,Vaidya度量和准静态限制,其各自的有效区域定量确定。

英文摘要:

We study the dynamics of gravitationally collapsing massive shells in AdS spacetime, and show in detail how one can determine extremal surfaces traversing them. The results are used to solve the time evolution of the holographic entanglement entropy in strongly coupled dual conformal gauge theory, which is is seen to exhibit a regime of linear growth independent of the shape of the boundary entangling region and the equation of state of the shell. Our exact results are finally compared to those of two commonly used approximation schemes, the Vaidya metric and the quasistatic limit, whose respective regions of validity are quantitatively determined.

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。

↑