185 citations · 1.2k across the 49 of their papers we have counts for
8 papers · 2 filters
No realistic wormholes from ghost-free scalar-tensor phantom dark energy
Kirill A. Bronnikov, Alexei A. Starobinsky
It is proved that no wormholes can be formed in viable scalar-tensor models of dark energy admitting its phantom-like () behaviour in cosmology, even in the presence of ele…
Regular black holes and black universes
K. A. Bronnikov, H. Dehnen, V. N. Melnikov
We give a comparative description of different types of regular static, spherically symmetric black holes (BHs) and discuss in more detail their particular type, which we suggest t…
Different faces of the phantom
K. A. Bronnikov, J. C. Fabris, S. V. B. Gonçalves
The SNe type Ia data admit that the Universe today may be dominated by some exotic matter with negative pressure violating all energy conditions. Such exotic matter is called {\it…
Diversity of universes created by pure gravity
K. A. Bronnikov, R. V. Konoplich, S. G. Rubin
We show that a number of problems of modern cosmology may be solved in the framework of multidimensional gravity with high-order curvature invariants, without invoking other fields…
Cold black holes and conformal continuations
K. A. Bronnikov, M. S. Chernakova, J. C. Fabris +2
We study Einstein gravity minimally coupled to a scalar field in a static, spherically symmetric space-time in four dimensions. Black hole solutions are shown to exist for a phanto…
Cold Black Holes in the Einstein-Scalar Field System
K. A. Bronnikov, J. C. Fabris, N. Pinto-Neto +1
We study Einstein gravity coupled to a massless scalar field in a static spherically symmetric space-time in four dimensions. Black hole solutions exist when the kinetic energy of…