Mariano Cadoni, Salvatore Mignemi, Matteo Serra. Black brane solutions and their solitonic extremal limit in Einstein-scalar gravity
Natural Sciences / Physics / Particle physics
Submitted on: Sep 15, 2012, 18:05:05
Description: We investigate static, planar, solutions of Einstein-scalar gravity admitting an anti-de Sitter (AdS) vacuum. When the squared mass of the scalar field is positive and the scalar potential can be derived from a superpotential, minimum energy theorems indicate the existence of a scalar soliton. On the other hand, for these models, no-hair theorems forbid the existence of hairy black brane solutions with AdS asymptotics. By considering a specific example (an exact integrable model which has the form of a Toda molecule) and by deriving explicit exact solution, we show that these models allow for hairy black brane solutions with non-AdS domain wall asymptotics, whose extremal limit is a scalar soliton. The soliton smoothly interpolates between a non-AdS domain wall solution at $r=infty$ and an AdS solution near $r=0$.