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hep-th2026
Closed Universe, Quantum Entanglement and Observers
Hao Geng
It has been argued that in quantum gravity the Hilbert space associated with any closed universe is trivially one-dimensional. To reconcile this argument with the richness of our o…
hep-th2026
Covariant Locally Localized Gravity and vDVZ Continuity
Hao Geng, Moritz Merz, Lisa Randall
The Karch-Randall braneworld concerns the physics of an AdS brane embedded in an ambient gravitational AdS spacetime. The gravitational theory induced on the AdS$_{d}…