33 citations · 193 across the 16 of their papers we have counts for
21 papers · 1 filter
Ring wormholes and time machines
Valeri P. Frolov, Pavel Krtous, Andrei Zelnikov
In the present paper we discuss properties of a model of a ring wormhole, recently proposed by Gibbons and Volkov. Such a wormhole connects two flat spacetimes which are glued thro…
Chiral anomalies in black hole spacetimes
Valeri P. Frolov, Alex Koek, Jose Pinedo Soto +1
We study the properties of chiral anomalies in a wide class of spacetimes which possess a principal Killing-Yano tensor. This class includes metrics of charged rotating black holes…
Bouncing cosmology in the limiting curvature theory of gravity
Valeri P. Frolov, Andrei Zelnikov
In this paper we discuss models satisfying the limiting curvature condition. For this purpose we modify the Einstein-Hilbert action by adding a term which restricts the growth of c…
Two-dimensional black holes in the limiting curvature theory of gravity
Valeri P. Frolov, Andrei Zelnikov
In this paper we discuss modified gravity models in which growth of the curvature is dynamically restricted. To illustrate interesting features of such models we consider a modific…
Lifshitz theory for a wedge
R. Krechetnikov, A. Zelnikov
We develop the Lifshitz theory of van der Waals forces in a wedge of a dielectric material. The non-planar geometry of the problem requires determining point-wise distribution of s…
Scarf for Lifshitz
A. Zelnikov, R. Krechetnikov
Polarization of a vacuum as well as of dispersive and dissipative dielectric media with piece-wise and smooth inhomogeneities is studied with the goal to clarify the question of re…