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Fresh Inflation from Five-Dimensional Vacuum State

Authors:	Mauricio Bellini

Institution:	(1) Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, AP:2-82, 58041 Morelia, Michoacán, México

Abstract:	I study fresh inflation from a five-dimensional vacuum state, where the fifth dimension is constant. In this framework, the universe can be seen as inflating in a four-dimensional Friedmann-Robertson-Walker metric embedding in a five-dimensional metric. Finally, the experimental data n _s = 1 (BOOMERANG-98 and MAXIMA-1, taken together COBE DMR), are consistent with $\frac{{{\text{p + }}\rho _t }}{{\rho _t }} \simeq {1 \mathord{\left/ {\vphantom {1 3}} \right. \kern-\nulldelimiterspace} 3}$ in the fresh inflationary scenario.

Keywords:	Inflationary cosmology higher-dimensional model
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