Gravitational Observation Opportunities for the Fuzzball Program

• Daniel Mayerson

Room: Amphi Bloch

Gravitational-wave signatures of beyond-Kerr: observational status, developments and perspectives

• Gregorio Carullo

Room: Amphi Bloch

The Black-Hole Photon Ring

• Alex Lupsasca

Room: Amphi Bloch

Extremal black holes as amplifiers of new physics

• Kolanowski Maciej

Room: Amphi Bloch

The correspondence between rotating black holes and fundamental strings

• Andrea Puhm

Room: Amphi Bloch

The Holar Wind

• Emil Martinec

Room: Amphi Bloch

Synthesis of Dip-Ramp-Plateau: Black Holes, Fuzzballs and a Semi-classical Analysis.

• Arnab Kundu

Room: Amphi Bloch

Anthony Houppe

• Anthony Houppe

Room: Amphi Bloch

Exploring fuzzballs with worldsheet methods

• Stefano Massai

Room: Amphi Bloch

Vector Superstrata

• Nejc Ceplak

Room: Amphi Bloch

Origin of the entropy of black holes in general relativity

• Vijay Balasubramanian

Room: Amphi Bloch

The uses of wormholes

• Raghu Mahajan

Room: Amphi Bloch

The universality of black hole thermodynamics

• Samir Mathur

Room: Amphi Bloch Abstract: The thermodynamic properties of black holes -- temperature, entropy and radiation rates -- are usually associated with the presence of a horizon. We argue that any Extremely Compact Object (ECO) must have the {\it same} thermodynamic properties. Quantum fields just outside the surface of an ECO have a large negative Casimir energy similar to the Boulware vacuum of black holes. If the thermal radiation emanating from the ECO does not fill the near-surface region at the local Unruh temperature, then we find that no solution of gravity equations is possible. In string theory, black holes microstates are horizonless quantum objects called fuzzballs that are expected to have a surface $\sim l_p$ outside $r=2GM$; thus the information puzzle is resolved while preserving the semiclassical thermodynamics of black holes.

Evolutionary algorithms for multi-center solutions

• David Turton

Room: Amphi Bloch

On the stability and deformability of Top Stars

• Massimo Bianchi

Room: Amphi Bloch

New SYM phases at finite chemical potential

• Oscar Dias

Room: Amphi Bloch Abstract: We do a systematic search of supergravity solutions that, via the AdS5/CFT4 correspondence, are dual to thermal states in N=4 SYM at finite chemical potential. These solutions are required to ultimately reproduce the microscopic entropy of AdS black holes. Using a mix of analytical and numerical methods, we construct and study static and rotating charged hairy solitonic and black hole solutions with global AdS5 asymptotics. They are constructed in a consistent truncation of five dimensional SO(6) gauged supergravity and can thus be uplifted to asymptotically AdS5 x S5 solutions of type IIB supergravity (it is also a truncation of N=8 gauged supergravity). Hairy black holes exist above a critical electric charge and merge with the known Cvetic-Lu-Pope (CLP) black holes along a curve determined by the onset of superradiance in the latter family. The hairy black holes then extend all the way up to the BPS limit (in a phase diagram) and they dominant the microcanonical ensemble when they coexist with the CLP black holes. In the BPS limit, our finite temperature black holes approach new supersymmetric hairy black holes that reduce to the supersymmetric Lucietti-Kunduri-Reall black hole family when the hair condensate vanishes. Our findings permit a good understanding of the full phase space of SYM thermal states with three arbitrary chemical potentials and finite charged scalar fields.

Topological solitons in gravity

• Ibrahima Bah

Room: Amphi Bloch

From local supersymmetries to black-hole microstructure

• Yixuan Li

Room: Amphi Bloch

Holography of tensionless string theory on AdS3 orbifolds

• Bin Guo

Room: Amphi Bloch

An Operator Algebraic Approach to Black Hole Evaporation

• Erik Verlinde

Room: Amphi Bloch

Neutral Solitons and their gravitational signatures

• Pierre Heidmann

Room: Amphi Bloch

The black hole behind the cut

• Cristoforo Iossa

Room: Amphi Bloch

Themelia: the irreducible microstructure of black holes

• Dimitrios Toulikas

Room: Amphi Bloch

Exact non-Abelian supertubes

• Masaki Shigemori

Room: Amphi Bloch