Back-reaction effect in power-law inflation

Details Back-reaction effect in power-law inflation Back-reaction effect in power-law inflation

2004-08-12

arxiv.org/abs/gr-qc/0408038v1

Nuovo Cim. B119 (2004) 191-195

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, no figures (accepted in Il Nuovo Cimento B)

Scientific paper

10.1393/ncb/i2004-10066-1

I consider a power-law inflationary model taking into account back-reaction
effects. The interesting result is that the spectrum for the scalar field
fluctuations does not depends on the expansion rate of the universe $p$ and
that it result to be scale invariant for cosmological scales. However, the
amplitude for these fluctuations depends on $p$.

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