Entropy of Radiation with Dynamical Gravity
arXiv:2302.04279 · doi:10.1007/JHEP05(2023)038
Abstract
We compute the subregion entanglement entropy for a doubly holographic black string model. This system consists of a non-gravitating bath and a gravitating brane, where we incorporate dynamic gravity by adding a DGP term. This opens up a new parameter directly extending previous work and raises an important question about unitarity. In this note we analyse which theories in this big parameter space, will have unitary entropy evolution, in particular, we will distinguish which of those will follow a Page curve.
26 pages + references, 15 figures; v2: corrected a sign error, updated the corresponding figures and rewrote part of section 4.1, major conclusions unchanged
References in corpus (8)
- Defect extremal surface as the holographic counterpart of Island formula
- Submerging islands through thermalization
- Free fermion entanglement with a semitransparent interface: the effect of graybody factors on entanglement islands
- The Multiverse in an Inverted Island
- Grey-body Factors, Irreversibility and Multiple Island Saddles
- From the Black Hole Conundrum to the Structure of Quantum Gravity
- Concerns about the replica wormhole derivation of the island conjecture
- Bootstrapping Boundaries and Branes