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Entanglement Entropy in Jackiw-Teitelboim Gravity

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arxiv 1911.10663 v2 pith:CMZ36Q4E submitted 2019-11-25 hep-th

Entanglement Entropy in Jackiw-Teitelboim Gravity

classification hep-th
keywords entropygravitytermareaentanglementeuclideanjackiw-teitelboimpure
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute the entanglement entropy and Renyi entropies of arbitrary pure states in pure Jackiw-Teitelboim gravity in Lorentz signature. We apply the quantum Hubeny-Rangamani-Ryu-Takayanagi formula by computing the quantum corrected area term and the bulk entropy term. The sum of these two terms for the Hartle-Hawking state agrees with the black hole entropy above extremality computed from the Euclidean disk path integral. We interpret the area term as the universal contribution of a defect operator that plays a crucial role in our Lorentzian interpretation of the Euclidean replica trick in gravity.

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Cited by 6 Pith papers

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