Intermediate inflation in light of the three-year WMAP observations

Barrow, John D, Liddle, Andrew R and Pahud, Cedric (2006) Intermediate inflation in light of the three-year WMAP observations. Physical Review D, 74 (12). p. 127305. ISSN 1550-7998

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The three-year observations from the Wilkinson Microwave Anisotropy Probe have been hailed as giving the first clear indication of a spectral index ns<1. We point out that the data are equally well explained by retaining the assumption ns=1 and allowing the tensor-to-scalar ratio r to be nonzero. The combination ns=1 and r>0 is given (within the slow-roll approximation) by a version of the intermediate inflation model with expansion rate H(t)∝t−1/3. We assess the status of this model in light of the WMAP3 data.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Andrew Liddle
Date Deposited: 06 Feb 2012 18:22
Last Modified: 03 Sep 2019 08:00

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