Lorentz symmetry is one of the pillars of both General Relativity and the Standard Model of
particle physics. Motivated by ideas about quantum gravity, unification theories and …

Comparatively few searches have been performed for violations of local Lorentz invariance
in the pure-gravity sector. We show that tests of short-range gravity are sensitive to a broad …

Gravitational theories with fixed background fields break local Lorentz and diffeomorphism
invariance either explicitly or spontaneously. In the case of explicit breaking it is known that …

In the framework of the Einstein-Maxwell-aether theory, we present two new classes of exact
charged black hole solutions, which are asymptotically flat and possess the universal as well …

We establish a nonlinear version of the SU (N)-symmetric theory, which describes self-
consistently the interaction between the gravitational, gauge, vector and pseudoscalar …

Abstract We investigate Kantowski-Sachs models in Einstein-æ ther theory with a perfect
fluid source using the singularity analysis to prove the integrability of the field equations and …

In the framework of the Einstein-Maxwell-axion-aether theory we establish the model, the
Lagrangian of which contains the sin-type generalization of the term describing the axion …

We investigate behaviors of the three-dimensional gravity coupled to a dynamical unit
timelike vector, the aether, and present two new classes of exact charged solutions. When c …

In the framework of the Einstein–Maxwell-aether-axion theory, we consider a self-consistent
model based on the concept of two-level control, which is carried out by the dynamic aether …

We present the solution space of the field equations in the Einstein-æther theory for the case
of a FLRW and a locally rotationally symmetric (LRS) Bianchi type III space-time. We also …