Cosmological Aspects of Branes in Brans-Dicke Gravity in Different Dimensions
Introduction to the Hamiltonian formalism of general relativity applied to cosmolo...
Grant number: | 11/00358-7 |
Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
Start date: | March 01, 2011 |
End date: | December 31, 2012 |
Field of knowledge: | Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields |
Principal Investigator: | Julio Marny Hoff da Silva |
Grantee: | Luís Rodolfo dos Santos Filho |
Host Institution: | Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil |
Abstract Scalar-tensor theories of gravitation have great appreciation for the community academic in the sixties, when the first version was established.In this theory, a scalar field has a dynamic that affects the structure of spacetime.The Brans-Dicke theory was first proposed as an alternative to general relativity, however, require testing in the solar systema lower limit of the Brans-Dicke parameter is around 4000, as a result ended up putting the theory into sensitive positions. On the other hand, an analysis of the dynamics of the scalar field of Brans-Dicke in a cosmological context presents a clear-cut result: the usual general relativity is an attractor of a natural gravitation of Brans-Dicke cosmology evolved, ie,the dynamics of the scalar field is gradually suppressed. In this sense, a result negative with respect to tests in the solar system is indeed expected.The student has developed so far fully its activities concerning the scientific initiation scholarship ca FAPESP as a project on gravitational waves.Now we propose the study of gravitation of Brans-Dicke always seeking a better way ing student on gravitation itself. We believe that the study of such a generalization of general relativity, and provide a better perspective on the area in question, allows a better understanding of gravitation, as well as their own general relativity itself. | |
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