Generalized perturbations in modified gravity and dark energy /

Generalized perturbations in modified gravity and dark energy /

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Bibliographic Details
Author / Creator:	Pearson, Jonathan, author.
Imprint:	Cham : Springer, [2013?] ©2014
Description:	1 online resource (xix, 200 pages) : illustrations (some color).
Language:	English
Series:	Springer theses, 2190-5053 Springer theses,
Subject:	Gravitation. Dark energy (Astronomy) General relativity (Physics) Perturbation (Astronomy) Dark energy (Astronomy) General relativity (Physics) Gravitation. Perturbation (Astronomy) Electronic books.
Format:	E-Resource Dissertations Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11080940

Hidden Bibliographic Details
ISBN:	9783319012100 331901210X 3319012096 9783319012094 9783319012094
Notes:	Includes bibliographical references. Online resource; title from PDF title page (SpringerLink, viewed September 24, 2013).
Summary:	When predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity, each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.
Other form:	Print version: Pearson, Jonathan. Generalized Perturbations in Modified Gravity and Dark Energy. Dordrecht : Springer, ©2013 9783319012094
Standard no.:	10.1007/978-3-319-01210-0

Description
Summary:	When predictions of Einstein's theory of General Relativity are compared against observations of our Universe, a huge inconsistency is found. The most popular fix for this inconsistency is to "invent" around 94% of the content of the universe: dark matter and dark energy. The dark energy is some exotic substance responsible for the apparent observed acceleration of the Universe. Another fix is to modify the theory of gravity: it is entirely plausible that Einstein's theory of General Relativity breaks down on cosmological scales, just as Newton's theory of gravity breaks down in the extreme gravitational field of the Sun. There are many alternative theories of gravity, each with the aim of describing observations of our Universe where General Relativity fails. Whether it is dark energy or some modified theory of gravity, it is clear that there is some "dark sector" in the Universe. In this thesis the author constructs a unifying framework for understanding the observational impact of general classes of dark sector theories, by formulating equations of state for the dark sector perturbations.
Physical Description:	1 online resource (xix, 200 pages) : illustrations (some color).
Bibliography:	Includes bibliographical references.
ISBN:	9783319012100 331901210X 3319012096 9783319012094
ISSN:	2190-5053