activity
20242026
collaborators

6 papers

hep-th2026

Quantum State of a Gravitating Spacetime Region

Raphael Bousso, Sami Kaya, Guanda Lin +1

We associate a gravitational Hilbert space to any closed compact -manifold with real metric. A quantum state is a -manifold bounded by…

hep-th2026

Quantum State of a Gravitating Region

Raphael Bousso, Sami Kaya, Guanda Lin +1

We propose that any compact -manifold with elliptic data, , prepares a quantum state on its -boundary . Elliptic data consists of me…

hep-th2025

Hollow-grams: Generalized Entanglement Wedges from the Gravitational Path Integral

Sami Kaya, Pratik Rath, Kyle Ritchie

Recently, Bousso and Penington (BP) made a proposal for the entanglement wedge associated to a gravitating bulk region. In this paper, we derive this proposal in time-reflection sy…

hep-th2025

Fundamental Complement of a Gravitating Region

Raphael Bousso, Sami Kaya

Any gravitating region in any spacetime gives rise to a generalized entanglement wedge, the hologram . Holograms exhibit properties expected of fundamental operator algeb…

hep-th2025

Holographic Entropy Cone Beyond AdS/CFT

Raphael Bousso, Sami Kaya

We extend all known area inequalities obeyed by Ryu-Takayanagi surfaces of AdS boundary regions -- the holographic entropy cone -- to static generalized entanglement wedges of bulk…

hep-th2024

Geometric Quantum States Beyond AdS/CFT

Raphael Bousso, Sami Kaya

We characterize the quantum states dual to entanglement wedges in arbitrary spacetimes, in settings where the matter entropy can be neglected compared to the geometric entropy. In…