Speaker
Dr
Theodoros Nakas
(Institute for Basic Science)
Description
Recent developments have uncovered a broad class of black hole solutions with scalar hair in shift-symmetric quadratic DHOST theories. In this talk, I will present results from 2310.11919 and 2312.17198, where both singular and regular black hole solutions, with primary and secondary scalar hair, are constructed and analyzed. These configurations exhibit nontrivial scalar profiles that modify the spacetime structure and, in some cases, lead to regular geometries without curvature singularities. I will highlight the main properties of these solutions and also discuss ongoing work on the linear stability of these and other inhomogeneous black-hole solutions, aimed at assessing their physical viability.
Author
Dr
Theodoros Nakas
(Institute for Basic Science)