Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation

Details Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation Suppressing CMB Quadrupole with a Bounce from Contracting Phase to Inflation

2003-10-22

arxiv.org/abs/hep-th/0310206v1

Phys.Rev.D69:103520,2004

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 3 figures

Scientific paper

10.1103/PhysRevD.69.103520

Recent released WMAP data show a low value of quadrupole in the CMB temperature fluctuations, which confirms the early observations by COBE. In this paper, a scenario, in which a contracting phase is followed by an inflationary phase, is constructed. We calculate the perturbation spectrum and show that this scenario can provide a reasonable explanation for lower CMB anisotropies on large angular scales.

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