CMB Angular Power Spectrum from Correlated Primordial Fluctuation

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dc.creatorYu, B.
dc.creatorLu, T.
dc.date2009-02-14
dc.date.accessioned2026-07-07T12:51:31Z
dc.date.available2026-07-07T12:51:31Z
dc.descriptionThe usual inflationary scenario predicts a Gaussian random primordial density fluctuation, different Fourier modes of which do not correlate with each other. In this paper we propose a correlation between these different modes. A simple case is that these different Fourier modes correlate with each other following a Gaussian function. For such a primordial density fluctuation we calculate the CMB angular power spectrum and find that its amplitude decreases but the decrease is different for different $l$. This feature can be used to constrain the the correlation strength from the real data.
dc.descriptionaccepted by PRD, 5 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0902.2448
dc.identifierhttp://arxiv.org/abs/0902.2448
dc.identifierPhys.Rev.D79:043015,2009
dc.identifierdoi:10.1103/PhysRevD.79.043015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223014
dc.subjectCosmology and Nongalactic Astrophysics
dc.titleCMB Angular Power Spectrum from Correlated Primordial Fluctuation
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