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oaioai:repository.ust.hk:1783.1-65557

General Single Field Inflation with Large Positive Non-Gaussianity

Authors
Publication date
2008
Publisher
Doi

    Abstract

    Recent analysis of the WMAP three-year data suggests f(NL)(local) NL similar or equal to 86.8 in the WMAP convention. It is necessary to make sure whether general single. field inflation can produce a large positive fNL before turning to other scenarios. We give some examples to generate a large positive f(NL)(equil) in general single inflation. Our models are different from ghost inflation. Due to the appearance of non-conventional kinetic terms, f(NL)(equil) NL >> 1 can be realized in single. eld inflation

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    Hong Kong University of Science and Technology Institutional Repository

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    Last time updated on 14/05/2016

    This paper was published in Hong Kong University of Science and Technology Institutional Repository.

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