activity
20202026
most citedQuasi-local energy and microcanonical entropy in two-dimensional nearly de Sitter gravity

83 citations · 563 across the 29 of their papers we have counts for

collaborators

32 papers

hep-th2026

Quasinormal modes and quantum black hole interiors

Chiara Coviello, Ansh Gupta, Robie A. Hennigar +2

Quasinormal modes (QNMs) of black hole perturbations in the large overtone limit, namely, asymptotic QNMs, are highly sensitive to a black hole's interior geometry. We probe the si…

hep-th2026

Looking inside a quantum black hole

Chiara Coviello, Ansh Gupta, Robie A. Hennigar +2

Quantum effects are expected to modify a black hole's interior structure, particularly near the singularity. We show how to extract the scaling exponent of the singularity from the…

hep-th2026

Gravitational index of the D1-D5-P black string

Silvia Georgescu, Sameer Murthy, Andrew Svesko

We present saddle-points of the Euclidean Gravitational Path Integral (GPI) corresponding to the supersymmetric index of the D1-D5-P black string. These saddles are complex, supers…

gr-qc2026

Action integrals for quantum BTZ black holes

Yuanfan Cao, Andrew Svesko

Black holes exactly incorporating quantum matter backreaction effects, namely, quantum black holes, are notoriously difficult to construct, let alone study their horizon thermodyna…

gr-qc2025

Mass and entropy of asymptotically flat eternal quantum black holes in 2D

Jean Alexandre, Eleni-Alexandra Kontou, Diego Pardo Santos +2

Semi-classical dilaton gravity in (1+1)-dimensions remains one of the only arenas where quantum black holes can be exactly constructed, fully accounting for backreaction due to qua…

hep-th2025

The Stretched Horizon Limit

Dionysios Anninos, Damián A. Galante, Silvia Georgescu +2

We consider four-dimensional general relativity with a positive cosmological constant, , in the presence of a boundary, , of finite spatial size. The boundary is located near…

hep-th2025★ 6 cited

Quantum censors: backreaction builds horizons

Antonia M. Frassino, Robie A. Hennigar, Juan F. Pedraza +1

Cosmic censorship posits spacetime singularities remain concealed behind event horizons, preserving the determinism of General Relativity. While quantum gravity is expected to reso…

hep-th2025

Conformal boundaries near extremal black holes

Damián A. Galante, Chawakorn Maneerat, Andrew Svesko

We examine four dimensional, near-extremal black hole solutions in the presence of a finite boundary obeying conformal boundary conditions, where the conformal class of the induced…

hep-th2025★ 3 cited

The landscape of complexity measures in 2D gravity

Elena Cáceres, Rafael Carrasco, Vaishnavi Patil +2

We investigate the broad landscape of holographic complexity measures for theories dual to two-dimensional (2D) dilaton gravity. Previous studies have largely focused on the comple…

hep-th2025

Quantum induced superradiance

Casey Cartwright, Umut Gürsoy, Juan F. Pedraza +1

Superradiance, the phenomenon enabling energy extraction through radiation amplification, is not universal to all black holes. We show that semi-classical backreaction can induce s…

hep-th2024

Nucleation of charged quantum de-Sitter black holes

Ana Climent, Robie A. Hennigar, Emanuele Panella +1

We construct charged, static black holes in three-dimensional de Sitter (dS) space that exactly account for semi-classical backreaction effects due to quantum conformal matte…

hep-th2024★ 1 cited

deformations from AdS to dS

Sergio E. Aguilar-Gutierrez, Andrew Svesko, Manus R. Visser

We revisit the formalism of deformations for quantum theories that are holographically dual to two-dimensional dilaton-gravity theories with Dirichlet…

hep-th2024

Three-dimensional quantum black holes: a primer

Emanuele Panella, Juan F. Pedraza, Andrew Svesko

We review constructions of three-dimensional `quantum' black holes. Such spacetimes arise via holographic braneworlds and are exact solutions to an induced higher-derivative theory…

hep-th2024

Quantum inequalities for quantum black holes

Antonia M. Frassino, Robie A. Hennigar, Juan F. Pedraza +1

We formulate spacetime inequalities applicable to quantum-corrected black holes to all orders of backreaction in semiclassical gravity. Namely, we propose refined versions of the q…

hep-th2024

Liouville gravity at the end of the world: Deformed defects in AdS/BCFT

Dominik Neuenfeld, Andrew Svesko, Watse Sybesma

We study shape deformations of two-dimensional end-of-the-world (ETW) branes, such as those in bottom-up models of two-dimensional holographic boundary conformal field theories (BC…

hep-th2023

Cornering gravitational entropy

Jani Kastikainen, Andrew Svesko

We present a new derivation of gravitational entropy functionals in higher-curvature theories of gravity using corner terms that are needed to ensure well-posedness of the variatio…

hep-th2023★ 1 cited

Gravitational Rényi entropy from corner terms

Jani Kastikainen, Andrew Svesko

We provide a consistent first principles prescription to compute gravitational Rényi entropy using Hayward corner terms. For Euclidean solutions to Einstein gravity, we compute Rén…

hep-th2023

Reentrant phase transitions of quantum black holes

Antonia M. Frassino, Juan F. Pedraza, Andrew Svesko +1

We show backreaction of quantum fields on black hole geometries can trigger new thermal phase transitions. Specifically, we study the phase behavior of the three-dimensional quantu…

hep-th2023

Gravitation from optimized computation: Einstein and beyond

Rafael Carrasco, Juan F. Pedraza, Andrew Svesko +1

A new principle in quantum gravity, dubbed spacetime complexity, states that gravitational physics emerges from spacetime seeking to optimize the computational cost of its quantum…

hep-th2023★ 30 cited

Quantum Kerr-de Sitter black holes in three dimensions

Emanuele Panella, Andrew Svesko

We use braneworld holography to construct a three-dimensional quantum-corrected Kerr-de Sitter black hole, exactly accounting for semi-classical backreaction effects due to a holog…

hep-th2022★ 72 cited

Higher-dimensional origin of extended black hole thermodynamics

Antonia M. Frassino, Juan F. Pedraza, Andrew Svesko +1

Holographic braneworlds are used to present a higher-dimensional origin of extended black hole thermodynamics. In this framework, classical, asymptotically anti-de Sitter black hol…

hep-th2022★ 56 cited

The minus sign in the first law of de Sitter horizons

Batoul Banihashemi, Ted Jacobson, Andrew Svesko +1

Due to a well-known, but curious, minus sign in the Gibbons-Hawking first law for the static patch of de Sitter space, the entropy of the cosmological horizon is reduced by the add…

hep-th2022★ 4 cited

Membrane nucleation rates from holography

Maite Arcos, Willy Fischler, Juan F. Pedraza +1

Membrane nucleation, a higher dimensional analog of the Schwinger effect, is a useful toy model for vacuum decay. While a non-perturbative effect, the computation of nucleation rat…

hep-th2022★ 57 cited

Black holes in dS

Roberto Emparan, Juan F. Pedraza, Andrew Svesko +2

In three-dimensional de Sitter space classical black holes do not exist, and the Schwarzschild-de Sitter solution instead describes a conical defect with a single cosmological hori…