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arXiv 2103.01230hep-thcond-mat.stat-mechgr-qc
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AdS $_2$中的运动镜、Page曲线和体熵

Moving mirrors, Page curves and bulk entropies in AdS$_2$

Ignacio A. Reyes

摘要:

理解量子场论中辐射的纠缠一直是一个长期存在的挑战,其影响范围从黑洞热力学到量子信息。我们演示了如何在$1 + 1$维度的自由费米子的情况下,揭示了由移动镜产生的辐射的密度矩阵的细节。使用预解式方法,而不是标准的CFT技术,我们推导出雷尼熵,模块化的哈密顿量和辐射流,并确定当镜子产生幺正变换。

英文摘要:

Understanding the entanglement of radiation in QFT has been a long standing challenge, with implications ranging from black hole thermodynamics to quantum information. We demonstrate how the case of the free fermion in $1 + 1$ dimensions reveals the details of the density matrix of the radiation produced by a moving mirror. Using the resolvent method rather than standard CFT techniques we derive the Rényi entropies, modular Hamiltonian and flow of the radiation, and determine when mirrors generate unitary transformations.

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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