Work

Exact black holes and black branes with bumpy horizons supported by superfluid pions

Year: 2026

Type: article

Abstract: We present exact solutions of the Einstein– S U ( 2 ) nonlinear sigma model in 3 + 1 spacetime dimensions, describing bumpy black holes and black branes. Using an Ansatz for superfluid pion multivortices, the matter sector reduces to a first-order Bogomol’nyi–Prasad–Sommerfield system, while the Einstein equations reduce to a Liouville equation with a smooth source governing the horizon deformation. These solutions describe horizons of different constant curvatures, with nontrivial bumpy geometries protected by an integer topological invariant, namely the vorticity, which also controls the number of bumps and the black hole thermodynamics. Remarkably, such horizons arise in a minimal and physically motivated matter model, without invoking exotic fields or modified gravity. The physical implications of these results in holography and astrophysics are briefly described.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/9shw-n7rs

Authors: Fabrizio Canfora, Andrés Gomberoff, Carla Henríquez-Baez, Aldo Vera

Institutions: San Sebastián University, Centro de Estudios Científicos, Universidad Mayor

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Agencia Nacional de Investigación y Desarrollo, Fondo Nacional de Desarrollo Científico y Tecnológico

Awards: G2398580010, G2949202400, QASAR: QUANTUM ALGORITHMS FOR SIMPLIFYING AND ACCELERATING REDUCTIONS IN HIGH ENERGY PHYSICS, G741125889