439 citations · 4.1k across the 133 of their papers we have counts for
5 papers · 1 filter
Magnetogenesis in non-local models during inflation
E. V. Gorbar, T. V. Gorkavenko, V. M. Gorkavenko +1
The generation of magnetic fields during inflation in an electromagnetic model with a non-local form factor in Maxwell`s action is studied. The equations of motion for the electrom…
Nonlocality of quantum matter corrections and cosmological constant running
E. V. Gorbar, Ilya L. Shapiro
Semiclassical contributions to the gravitational action include various terms with zero, two, and four derivatives of the metric as well as nonlocal form factors for these terms. C…
Generation of an electromagnetic field nonminimally coupled to gravity during Higgs inflation
O. O. Sobol, E. V. Gorbar, O. M. Teslyk +1
In the framework of Higgs inflation, we consider the electromagnetic field nonminimally coupled to gravity via the parity-preserving and parity-violating $\propto…
Schwinger production of scalar particles during and after inflation from the first principles
O. O. Sobol, E. V. Gorbar, A. I. Momot +1
By using the first-principles approach, we derive a system of three quantum kinetic equations governing the production and evolution of charged scalar particles by an electric fiel…
Kinetic approach to the Schwinger effect during inflation
E. V. Gorbar, A. I. Momot, O. O. Sobol +1
Using the kinetic approach, we study the impact of the charged particles dynamics due to the Schwinger effect on the electric field evolution during inflation. As a simple model of…