Chaplygin gas braneworld inflation according to WMAP7 data

Details Chaplygin gas braneworld inflation according to WMAP7 data Chaplygin gas braneworld inflation according to WMAP7 data

2010-12-05

arxiv.org/abs/1012.1050v1

Phys.Rev.D82:123506,2010

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 3 figures

Scientific paper

10.1103/PhysRevD.82.123506

We consider a Chaplygin gas model with an exponential potential in framework of braneworld inflation. We apply the slow-roll approximation in the high-energy limit to derive various inflationary spectrum perturbation parameters. We show that the inflation observables depend only on the e-folding number N and the final value of the slow-roll parameter e(end). Whereas for small running of the scalar spectral index dns/dlnk, the inflation observables are in good agreement with recent WMAP7 data.

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