5 papers
On Stability of Asymptotically Free Mimetic Hořava Gravity
Tobias B. Russ
Asymptotically free mimetic gravity has been introduced as a proposal for a classical limiting curvature theory with the purpose of singularity resolution. It was found that in a s…
Non-flat Universes and Black Holes in Asymptotically Free Mimetic Gravity
Ali H. Chamseddine, Viatcheslav Mukhanov, Tobias B. Russ
The recently proposed theory of "Asymptotically Free Mimetic Gravity" is extended to the general non-homogeneous, spatially non-flat case. We present a modified theory of gravity w…
Mimetic Horava Gravity
Ali H. Chamseddine, Viatcheslav Mukhanov, Tobias B. Russ
We show that the scalar field of mimetic gravity could be used to construct diffeomorphism invariant models that reduce to Horava gravity in the synchronous gauge. The gradient of…
Black Hole Remnants
Ali H. Chamseddine, Viatcheslav Mukhanov, Tobias B. Russ
We show that in asymptotically free mimetic gravity with limiting curvature the black hole singularity can be resolved and replaced by a static patch of de Sitter space. As a resul…
Asymptotically Free Mimetic Gravity
Ali H. Chamseddine, Viatcheslav Mukhanov, Tobias Russ
The idea of "asymptotically free" gravity is implemented using a constrained mimetic scalar field. The effective gravitational constant is assumed to vanish at some limiting curvat…