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- W2891118981 abstract "The equivalence principle has proven to be central to theories of gravity, with General Relativity being the simplest and most elegant theory to embody the principle. Most alternative theories of gravity struggle to satisfy the principle and still be distinct from GR. Extensions of cosmological and quantum theories question the irrefutably of the equivalence at every scale. The possibility of an equivalence principle violation at galactic scales would be an exciting prospect. In this thesis, we will carefully examine the equivalence principle through the study of chameleon scalar-tensor theories, this will include solutions for hypothetical stars known as boson stars. Such theories find varied application, especially in cosmology, where they model dark energy and inflation. The AWE hypothesis, is an instance of this. It is a nonuniversally coupled model in which violations of the equivalence principle on galactic scales may be apparent. We investigate spherically symmetric and static solutions within the framework of this theory. The constraints obtained from galactic rotation curves results in values of the couplings that show no significant violation of the equivalence principle or values consistent with a theory of dark energy" @default.
- W2891118981 created "2018-09-27" @default.
- W2891118981 creator A5089374410 @default.
- W2891118981 date "2014-01-01" @default.
- W2891118981 modified "2023-09-24" @default.
- W2891118981 title "A study of spherical solutions in chameleon scalar-tensor theories" @default.
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- W2891118981 hasPublicationYear "2014" @default.
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