Island in the Presence of Higher Derivative Terms

Abstract

Using extended island formula we compute entanglement entropy of Hawking radiation for black hole solutions of certain gravitational models containing higher derivative terms. To be concrete we consider two different four dimensional models to compute entropy for both asymptotically flat and AdS black holes. One observes that the resultant entropy follows the Page curve, thanks to the contribution of the island, despite the fact that the corresponding gravitational models might be non-unitary.

18 pages, 3 figures, published version

References in corpus (8)

• Black holes as mirrors: quantum information in random subsystems
• Entanglement entropy, conformal invariance and extrinsic geometry
• Critical Gravity in Four Dimensions
• Islands in Schwarzschild black holes
• Page Curve for an Evaporating Black Hole
• Islands in Asymptotically Flat 2D Gravity
• Notes on islands in asymptotically flat 2d dilaton black holes
• D-Dimensional Log Gravity

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