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arXiv · 0809.2852

Cosmology With Non-Minimally Coupled K-Field

A. A. Sen·N. Chandrachani Devi
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Abstract

We consider non-minimally coupled (with gravity) scalar field with non-canonical kinetic energy. The form of the kinetic term is of Dirac-Born-Infeld (DBI) form.We study the early evolution of the universe when it is sourced only by the k-field, as well as late time evolution when both the matter and k-field are present. For the k-field, we have considered constant potential as well as potential inspired from Boundary String Field Theory (B-SFT). We show that it is possible to have inflationary solution in early time as well as late time accelerating phase. The solutions also exhibit attractor property in a sense that it does not depend on the initial conditions for a certain values of the parameters.

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A. A. Sen, N. Chandrachani Devi. 2009-08-25. Cosmology With Non-Minimally Coupled K-Field. https://doi.org/10.1007/s10714-009-0882-y

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