Scalar Perturbations in a String Inspired Inflationary Scenario

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

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8 pages, latex file

Scientific paper

We consider an inflationary model inspired in the low energy limit of string
theory. In this model, the scale factor grows exponentially with time. A
perturbation study is performed, and we show that there is a mode which
displays an exponential growth in the perturbation of the scalar field.

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