Speaker
Egor Pluzhnikov
(Moscow State University, Dept. of Space Research)
Description
We demonstrate how extended gravity theories can be derived from the вeformation of topological BF field theory. Initially, BF gravity can be deformed by the disformal modification of theory’s internal fields. This transformation leads to the appearance of a scalar-tensor gravity action. Thus, one generates the theory that includes the inflaton field, as opposed to earlier models (e.g. emergent gravity a la Wilczek). Сonsequently, the proposed approach reproduces scalar-tensor gravity as it could occur at the pre-inflationary stage of the Universe.
Authors
Egor Pluzhnikov
(Moscow State University, Dept. of Space Research)
Stanislav Alexeyev
(Sternberg Astronomical Institute)
