A multiverse model in dS wedge holography

• DOI: 10.48550/arxiv.2311.02074
• Publication Date: 2023-01-01
• Authors: Sergio E. Aguilar...; Filip Landgren
• Keywords: Wedge (geometry); Wormhole; Observer (physics)

We construct a multiverse model based on recent proposal for dS wedge holography, where empty AdS$_3$ space is cut off by pair of accelerated dS$_2$ universes, one near the AdS boundary, denoted UV brane, and in interior, IR brane. glue together several copies this configuration along branes periodic matter. To provide with dynamics like Nariai black holes used other toy models, we add JT gravity as an intrinsic theory branes. then study entanglement entropy respect to brane observer, who finds Page curve transition due island connecting This process involves coarse-graining information outside causally accessible region observer. Our provides explicit realization between degrees freedom encoded multiverse.