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arXiv · 2103.01230

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

Ignacio A. Reyes
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Abstract

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.

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BibTeXRIS

Ignacio A. Reyes. 2021-09-29. Moving mirrors, Page curves and bulk entropies in AdS$_2$. https://doi.org/10.1103/physrevlett.127.051602

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