Artículos de revistas
Membrane solutions to Hořava gravity
Fecha
2017-10Registro en:
Argüelles, Carlos Raúl; Grandi, Nicolás Esteban; Membrane solutions to Hořava gravity; Springer; Gravitation & Cosmology; 23; 4; 10-2017; 349-358
0202-2893
CONICET Digital
CONICET
Autor
Argüelles, Carlos Raúl
Grandi, Nicolás Esteban
Resumen
We have investigated purely gravitational membrane solutions to the Hořava nonrelativistic theory of gravity with detailed balance in 3 + 1 dimensions. We find that for arbitrary values of the running parameter λ > 1/3 there exist two branches of membrane solutions, and that in the special case λ = 1 one of them is degenerate, the lapse function being undetermined. For negative values of the cosmological constant, the solution contains a single membrane sitting at the center of space, which extends infinitely in the transverse direction, approaching a Lifshitz metric. For positive values of the cosmological constant, the solution represents a space that is bounded in the transverse direction, with two parallelmembrane-like or point-like singularities sitting at each of the boundaries.