10 citations · 24 across the 7 of their papers we have counts for
17 papers · 1 filter
Electrically charged and neutral wormhole instability in scalar-tensor gravity
K. A. Bronnikov, S. V. Grinyok
We study the stability of static, spherically symmetric, traversable wormholes with or without an electric charge, existing due to conformal continuations in a class of scalar-tens…
Uniqueness of RS2 type thick branes supported by a scalar field
S. T. Abdyrakhmanov, K. A. Bronnikov, B. E. Meierovich
We study thick brane world models as Z_2-symmetric domain walls supported by a scalar field with an arbitrary potential V(ϕ) in 5D general relativity. Under the global regularity r…
f(R) theory of gravity and conformal continuations
K. A. Bronnikov, M. S. Chernakova
We consider static, spherically symmetric vacuum solutions to the equations of a theory of gravity with the Lagrangian f(R) where R is the scalar curvature and f is an arbitrary fu…
Quantum theory of scalar field in isotropic world
K. A. Bronnikov, E. A. Tagirov
Fock representations are constructed for a free scalar field in the closed and quasi-Euclidean isotropic cosmological models. Invariance of their cyclic vector (vacuum) under isome…
Nonsingular multidimensional cosmologies with Lobachevsky spatial sections
K. A. Bronnikov
Examples of nonsingular cosmological models are presented on the basis of exact solutions to multidimensional gravity equations. These examples involve pure imaginary scalar fields…
Possible time variations of G in scalar-tensor theories of gravity
K. A. Bronnikov, V. N. Melnikov, Mario Novello
We estimate the possible variations of the gravitational constant G in the framework of a generalized (Bergmann-Wagoner-Nordtvedt) scalar-tensor theory of gravity on the basis of t…