Show simple item record

dc.contributor.advisorFischler, Willy
dc.creatorDimastrogiovanni, Emanuela
dc.description.abstractAn introduction to the physics of inflation and to the no-hair theorem is presented, raising the unsolved question of whether or not inflation can occur in inhomogeneous cosmological models. A Bianchi type I (homogeneous and anisotropic) universe might degenerate into an inhomogeneous spacetime if small perturbations to the metric were introduced. This is verified with a perturbative analysis of density inhomogeneities and the results reveal that, for a large region of parameter space, the perturbations might reach order one well before what experimentally is indicated as the earliest time at which inflation might start. This provides a scenario in which it is not clear whether a De Sitter phase of the universe evolution will be eventually achieved.en_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.subjectPhysics of inflationen_US
dc.subjectNo hair theoremen_US
dc.subjectCosmological modelsen_US
dc.titlePerturbations in anisotropic cosmologies and cosmic no hair theoremen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record