4 papers · 1 filter
A Universal Kaluza-Klein Graviton Cascade Rate
Vincent S. H. Lee, Lisa Randall, Marcos Riojas
We obtain a general decay rate between Kaluza-Klein (KK) gravitons, resolving an ambiguity in the literature concerning these decays. The amplitude is determined not only by the ma…
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}…
Seeing Page Curves and Islands with Blinders On
Hao Geng, Andreas Karch, Carlos Perez-Pardavila +3
This paper summarizes recent discussions of the Page curve and the information paradox, and responds to the reasoning and examples from arXiv:2506.04311. We review arguments demons…
Wet Hair: Global Symmetries in Entanglement Islands
Hao Geng, Jesús Huertas, Andreas Karch +2
A central conjecture in quantum gravity is the non-existence of global symmetries. As a fully unitary theory, there is no information loss in a UV complete quantum gravity theory.…