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순수물리이론 연구단
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CMB probes on the correlated axion isocurvature perturbation

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Title
CMB probes on the correlated axion isocurvature perturbation
Author(s)
Kenji Kadota; Jinn-Ouk Gong; Kiyotomo Ichiki; Takahiko Matsubara
Publication Date
2015-03
Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, v.3, no.3, pp.026 -
Publisher
IOP PUBLISHING LTD
Abstract
We explore the possible cosmological consequence of the gravitational coupling between the inflaton and axion-like fields. In view of the forthcoming cosmic microwave background (CMB) polarization and lensing data, we study the sensitivity of the CMB data on the cross-correlation between the curvature and axion isocurvature perturbations. Through a concrete example, we illustrate the explicit dependence of the scale dependent cross- correlation power spectrum on the axion parameters. c 2015 IOP Publishing Ltd and Sissa Medialab srl
URI
https://pr.ibs.re.kr/handle/8788114/2083
ISSN
1475-7516
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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