41 citations · 124 across the 11 of their papers we have counts for
11 papers
Perturbations of a Schwarzschild black hole in torsion bigravity
Vasilisa Nikiforova
In this paper we pursue the study of linear perturbations around a Schwarzschild black hole in a generalized Einstein-Cartan theory of gravity, called torsion bigravity. This theor…
Spherically symmetric perturbations of a Schwarzschild black hole in torsion bigravity
Vasilisa Nikiforova
Time-dependent spherically-symmetric perturbations of Schwarzschild black holes are studied within torsion bigravity, i.e., within generalized Einstein-Cartan theories where the dy…
Black holes in the long-range limit of torsion bigravity
Vasilisa Nikiforova
We continue the study of spherically symmetric black hole solutions in torsion bigravity, a class of Einstein-Cartan-type gravity theories involving, besides a metric, a massive pr…
Black holes in torsion bigravity
Vasilisa Nikiforova, Thibault Damour
We study spherically symmetric black hole solutions in a four-parameter Einstein-Cartan-type class of theories, called "torsion bigravity". These theories offer a geometric framewo…
Absence of a Vainshtein radius in torsion bigravity
Vasilisa Nikiforova
It was pointed out long ago by Vainshtein [Phys. Lett. 39B, 393 (1972)] that the weak-field perturbation expansion of generic theories (of the nonlinear Fierz-Pauli type) involving…
Spherically symmetric solutions in torsion bigravity
Thibault Damour, Vasilisa Nikiforova
We study spherically symmetric solutions in a four-parameter Einstein-Cartan-type class of theories. These theories include torsion, as well as the metric, as dynamical fields, and…
Infrared modified gravity with propagating torsion: instability of torsionfull de Sitter-like solutions
Vasilisa Nikiforova, Thibault Damour
We continue the exploration of the consistency of a modified-gravity theory that generalizes General Relativity by including a dynamical torsion in addition to the dynamical metric…
Stability of self-accelerating Universe in modified gravity with dynamical torsion: the case of small background torsion
V. Nikiforova
We consider the model of modified gravity with dynamical torsion. This model was found to have promising stability properties about various backgrounds. The model admits a self-acc…
On the stability of self-accelerating Universe in modified gravity with dynamical torsion
V. Nikiforova
We consider the model of modified gravity with dynamical torsion. This model was previously found to have promising stability properties about various backgrounds. Here we study th…
Self-accelerating Universe in modified gravity with dynamical torsion
V. Nikiforova, S. Randjbar-Daemi, V. Rubakov
We consider a model belonging to the class of gravities with dynamical torsion. The model is free of ghosts and gradient instabilities about Minkowski and torsionless Einstein back…
Infrared Modified Gravity with Dynamical Torsion
V. Nikiforova, S. Randjbar-Daemi, V. Rubakov
We continue the recent study of the possibility of constructing a consistent infrared modification of gravity by treating the vierbein and connection as independent dynamical field…