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Cosmological magnetic fields from inflation.

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Call No.	QC45.N43 D3 2012mot
Author	Motta, Leonardo (Leonardo Dias Da)
Title	Cosmological magnetic fields from inflation.
Date	2012
Abstract	In this thesis we review the methods for computation of cosmological correlations in the early universe known as the in-in formalism which are then applied to the problem of magnetogenesis from inflation. For this computation, a power-law single field slow-roll inflation is assumed together with a coupling of the form e[superscript phi/v]F[superscript mu v]F[subscript mu v] between the inflaton [phi] and the electrodynamical field strength F[subscript mu v]. For certain choice of parameters, the model produces a scale-invariant power spectrum that can be as high as 10⁻¹² G as cosmological scales at present time. Finally, we compute the correlation between the magnetic field energy density and scalar metric fluctuations at tree-level from which the shape of the resulting non-gaussianity is analyzed. We show that the corresponding bispectrum is of order 10⁻⁵ times the power spectrum of magnetic fields.
Description	1 online resource (vii, 138 leaves) : illustrations (some color)
Format	application/pdf
College	Dartmouth College -- Department of Physics and Astronomy.
Issuing Body	Dartmouth Dissertations are made available through the Dartmouth Digital Library.
Degree	Thesis (Ph.D)--Dartmouth College.
Copyright	In Copyright. This material is protected by copyright and/or related rights. You are free to use this material in any way that is permitted by copyright law that applies to your use. For other uses, you need to obtain permission from the rights-holder(s). http://rightsstatements.org/page/InC/1.0/
DOI	https://doi.org/10.1349/ddlp.3287

Title	motta2012 1
Full Text	cosmological magnetic fields from inflation thesis Submitted to the Faculty in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Physics by leonardo motta dartmouth college Hanover, New Hampshire July, 2012

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Cosmological magnetic fields from inflation.

Cosmological magnetic fields from inflation.