53 citations · 156 across the 19 of their papers we have counts for
19 papers
Multi-scale hierarchy from multidimensional gravity
Kirill A. Bronnikov, Arkady A. Popov, Sergey G. Rubin
We discuss the way of solving the hierarchy problem. We show that starting at the Planck scale, the three energy scales -- inflationary, electroweak and the cosmological ones can b…
Flexible extra dimensions
Polina Petriakova, Arkady A. Popov, Sergey G. Rubin
This paper discusses the origin of the small parameters with the aim of explaining the Hierarchy problem. The flexible extra dimensions are an essential tool in the process by whic…
Ghost-free Gravity
S. Nojiri, S. D. Odintsov, V. K. Oikonomou +1
In this work we shall address the ghost issue of gravity, which is known to be plagued with ghost degrees of freedom. These ghosts occur due to the…
Sub-Planckian scale and limits for models
P. M. Petryakova, Arkady A. Popov, Sergey G. Rubin
We study the Universe evolution starting from the sub-Planckian scale to present times. The requirement for an exponential expansion of the space with the observed metric as a fina…
Inhomogeneous compact extra dimensions and de Sitter cosmology
Kirill A. Bronnikov, Arkady A. Popov, Sergey G. Rubin
In the framework of multidimensional gravity, we study the metrics of compact extra dimensions assuming that our 4D space has the de Sitter metric. Manifolds described by su…
Propagation of Gravitational Waves in Chern-Simons Axion Gravity
Shin'ichi Nojiri, S. D. Odintsov, V. K. Oikonomou +1
In this paper we shall study the evolution of cosmological gravitational waves in the context of Chern-Simons axion gravity. In the case of Chern-Simons axion gravity…