4 papers
Gravitational Algebras with Two Areas
Xuchen Cao, Thomas Faulkner, Zhencheng Wang
We study gravitational algebras on spacetimes with two extremal surfaces. In the example of a long wormhole with two asymptotic AdS boundaries and two compact extremal surfaces, we…
Bounds on CFT correlations from the thermal partition function
Fikret Ceyhan, Thomas Faulkner
We discuss upper bounds on the mutual information for disjoint spherical regions of the CFT vacuum. To prove our bounds, we utilize the modular nuclearity condition, which is in tu…
Ramp from Replica Trick
Xuchen Cao, Thomas Faulkner
We compute the spectral form factor of the modular Hamiltonian associated to the reduced density matrix of a Haar random state. A ramp is demonstrated and we find an an…
Gravitational algebras and the generalized second law
Thomas Faulkner, Antony J. Speranza
We derive the generalized second law (GSL) for arbitrary cuts of Killing horizons from the perspective of crossed-product gravitational algebras, making use of a recent proposal by…