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The observational consequences of primordial fields


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  • Product Description

The use of the observational properties of the Cosmic Microwave Background radiation (CMB) to constrain the presence of different components in the universe, which perturb the background metric, is nowadays a well-established methodology in Cosmology. In this thesis the methodology is applied to three cases: primordial magnetic fields, a hypothetical electric charge asymmetry in the universe, and the inflaton field. The main part of the thesis deals with the problem of cosmic magnetic fields: assuming that they were formed in the early universe, we derive upper bounds on their intensity and analyse the imprint of a helical magnetic field on the CMB. We also study the effect of a global electric charge asymmetry, and deduce upper limits on the charge of some fundamental particles, partly improving the current ones from laboratory experiments. The first chapters of the thesis are dedicated to the review of the theoretical framework at the basis of the treated topics: we give an overview of the physics of cosmic magnetic fields, from observations to the theory of their generation, of cosmological linear perturbation theory and of the formalism of CMB anisotropies and polarisation.

Product Specifications
SKU :COC101000
AuthorChiara Caprini
Number of Pages192
Publishing Year2011-04-07T00:00:00.000
Edition1 st
Book TypePhysics
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-18 00:00:00
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