9 papers
Reverse Isoperimetric Conjecture as a Noether-Charge Stability Theorem
Naman Kumar
The reverse isoperimetric conjecture asserts that, at fixed thermodynamic volume, Schwarzschild--AdS black holes maximize entropy. We prove that this statement is the fixed-volume…
Quantum Black Hole Chemistry from Double Holography
Naman Kumar
Extended black hole thermodynamics exposes a sharp tension in the usual holographic dictionary: at fixed boundary conformal frame, changing the AdS radius changes both the central…
An Algebraic Resolution of the Firewall Paradox
Naman Kumar
The AMPS firewall argument relies on treating early radiation, late outgoing Hawking modes, and interior partner modes as approximately independent quantum subsystems. In diffeomor…
Massless Islands in Wedge Holography
Naman Kumar
Entanglement islands are usually easiest to realize in doubly holographic models with massive gravitons or non-gravitating baths. In wedge holography, by contrast, Neumann boundary…
Topology sums, sectorwise holography, and horizon normalcy
Naman Kumar
The ``holography of information'' (HoI) principle argues that gravity can encode information redundantly in asymptotic observables. Although HoI is ultimately a nonperturbative cla…
Entropy bound and the non-universality of entanglement islands
Naman Kumar
Entanglement islands resolve the AMPS firewall paradox in a region-dependent manner by modifying the entanglement wedge of Hawking radiation. We investigate whether this resolution…