COSMOLOGICAL INFLATION IN TENSOR-MULTI-SCALAR THEORY OF GRAVITATION
Chervon S.V., Kubasov A.S., Bolshakova K.A.
In this paper, it is shown that the Tensor-Multi-Scalar Theory of Gravity (TMS TG) allows for inflationary solutions for the vacuum case, that is, in the absence of material source. For the two-field TMS TG, solutions are found in the presence of a source in the form of the scalar field in the slow-roll regime, when the gravitational part is given in the Einstein frame, and the action of the non-gravitational (material) field \(S_m\) is given in the Jordan frame. In this case, classes of power-law and de Sitter inflation solutions for various potentials of the non-gravitational scalar field are found.
Please cite this article in English as: Chervon S.V., Kubasov A.S., Bolshakova K.A. Cosmological inflation in tensor-multi-scalar theory of gravitation. Space, Time and Fundamental Interactions, 2018, no. 1, pp. 67-81.