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dc.contributor.authorPrescod-Weinstein, Chanda Rosalyn Sojourner
dc.date.accessioned2010-09-22 18:25:41 (GMT)
dc.date.available2010-09-22 18:25:41 (GMT)
dc.date.issued2010-09-22T18:25:41Z
dc.date.submitted2010
dc.identifier.urihttp://hdl.handle.net/10012/5498
dc.description.abstractThe discovery of cosmic acceleration has prompted the need for a new understanding of cosmology. The presence of this acceleration is often described as the dark energy problem or the Lambda problem.The simplest explanation is that the acceleration is due to addition of a cosmological constant to Einstein's equation, but this resolution is unsatisfactory as it leaves several unanswered questions. Although General Relativity has been tested in the strong-field limit, the apparent dark energy may be urging us to consider experimental cosmology as such a test for large scales. In this vein, I have pursued a study of modifications to Einstein's gravity as well as possible related quantum gravity phenomenology. Not only must the details of modified gravities be worked out, but their impact on other astrophysics must be checked. For example, structure formation provides a strong test of any cosmic acceleration model because a successful dark energy model must not inhibit the development of observed large-scale structures. Traditional approaches to studies of structure formation in the presence of dark energy or a modified gravity implement the Press & Schechter formalism. I explore the potential for universality in the Press & Schechter formalism and what dark matter haloes may be able to tell us about cosmology.en
dc.language.isoenen
dc.publisherUniversity of Waterlooen
dc.subjectphysicsen
dc.subjectcosmologyen
dc.subjectquantum gravityen
dc.subjectastrophysicsen
dc.subjectastronomyen
dc.titleCosmic Acceleration As Quantum Gravity Phenomenologyen
dc.typeDoctoral Thesisen
dc.comment.hiddenThis dissertation includes one figure from a publication by another author which does not require written permission because the author is dead and copyright has been released. (This is the Hubble plot from 1929.) In the case of the two chapters that were previously published in Phys Rev D, as the author I have permission from Phys Rev D to reuse the article in my dissertation, as long as I provide a copyright statement in the document, which I have done in the authorship statement.en
dc.pendingfalseen
dc.subject.programPhysicsen
uws-etd.degree.departmentPhysics and Astronomyen
uws-etd.degreeDoctor of Philosophyen
uws.typeOfResourceTexten
uws.peerReviewStatusUnrevieweden
uws.scholarLevelGraduateen


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