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http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/36148| Title: | Modified Brans-Dicke theory of gravity from five-dimensional vacuum. |
| Other Titles: | Teoria da gravidade de Brans-Dicke modificada a partir do vácuo pentadimensional. |
| ???metadata.dc.creator???: | AGUILAR, José Edgar Madriz. ROMERO FILHO, Carlos Augusto. BARROS, Adriano Trindade de. |
| Keywords: | Brans-Dicke theory of gravity;Five-dimensional vacuum;Induced-matter theory;Gravidade pentadimensional;Equações de vácuo 5D - Brans-Dicke;5D Brans-Dicke vaccum equations;Vácuo quadridimensional de O’Hanlon e Tupper;Four-dimensional O’Hanlon and Tupper vacuum;Fifth dimensional gravity;5D vacuum equations - Brans-Dicke;O’Hanlon and Tupper’s four-dimensional vacuum |
| Issue Date: | 2008 |
| Publisher: | Universidade Federal de Campina Grande |
| Citation: | AGUILAR, José Edgar Madriz; ROMERO FILHO, Carlos Augusto; BARROS, Adriano Trindade de. Modified Brans-Dicke theory of gravity from five-dimensional vacuum. General Relativity and Gravitation, v. 40, p. 117-130, 2008. Disponível em: http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/36148 |
| ???metadata.dc.description.resumo???: | We investigate, in the context of five-dimensional (5D) Brans-Dicke theory of gravity, the idea that macroscopic matter configurations can be generated from pure vacuum in five dimensions, an approach first proposed in the framework of general relativity. We show that the 5D Brans-Dicke vacuum equations when reduced to four dimensions lead to a modified version of Brans-Dicke theory in four dimensions (4D). As an application of the formalism, we obtain two five-dimensional extensions of four-dimensional O’Hanlon and Tupper vacuum solution and show that they lead two different cosmological scenarios in 4D. Investigamos, no contexto da teoria da gravidade pentadimensional (5D) de Brans-Dicke, a ideia de que configurações macroscópicas da matéria podem ser geradas a partir do vácuo puro em cinco dimensões, uma abordagem proposta pela primeira vez no âmbito da relatividade geral. Mostramos que as equações de vácuo 5D de Brans-Dicke quando reduzidas a quatro dimensões levam a uma versão modificada da teoria de Brans-Dicke em quatro dimensões (4D). Como aplicação do formalismo, obtemos duas extensões pentadimensionais da solução de vácuo quadridimensional de O’Hanlon e Tupper e mostramos que elas conduzem a dois cenários cosmológicos diferentes em 4D. |
| Keywords: | Brans-Dicke theory of gravity Five-dimensional vacuum Induced-matter theory Gravidade pentadimensional Equações de vácuo 5D - Brans-Dicke 5D Brans-Dicke vaccum equations Vácuo quadridimensional de O’Hanlon e Tupper Four-dimensional O’Hanlon and Tupper vacuum Fifth dimensional gravity 5D vacuum equations - Brans-Dicke O’Hanlon and Tupper’s four-dimensional vacuum |
| ???metadata.dc.subject.cnpq???: | Física. |
| URI: | http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/36148 |
| Appears in Collections: | Artigos Científicos - CDSA |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| MODIFIED BRANS-DICKE THEORY - ARTIGO DE PERIÓDICO CDSA 2008.pdf | Modified Brans-Dicke theory of gravity from five-dimensional vacuum. - Artigo de Periódico CDSA 2008 | 145.9 kB | Adobe PDF | View/Open |
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