Inflationary phase in Generalized Brans-Dicke theory

Details Inflationary phase in Generalized Brans-Dicke theory Inflationary phase in Generalized Brans-Dicke theory

2001-11-28

arxiv.org/abs/gr-qc/0111098v2

Int.J.Theor.Phys.48:1929-1932,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

International Journal of Theoretical Physics, to be published

Scientific paper

10.1007/s10773-009-9965-5

We find a solution for exponential inflation in a Brans-Dicke generalized model, where the coupling "constant " is variable. While in General Relativity the equation of state is p is equal to minus rho, here we find p proportional to rho, where the proportionality constant is smaller than -2/3. The negativity of cosmic pressure implies acceleration of the expansion, even with lambda < 0 >.

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