Utilize este identificador para referenciar este registo:
http://hdl.handle.net/11144/3100
Título: | Dark Radiation Dynamics on the Brane |
Autor: | Neves, Rui Vaz, Cenalo |
Palavras-chave: | High Energy Physics Theory General Relativity Quantum Cosmology |
Data: | 18-Jul-2002 |
Editora: | American Physical Society |
Citação: | Neves, R., & Vaz, C. (2002). Dark radiation dynamics on the brane. Physical Review D 66 (12), 124002-124014 |
Relatório da Série N.º: | 12; |
Resumo: | We investigate the dynamics of a spherically symmetric vaccum on a Randall and Sundrum 3-brane world. Under certain natural conditions, the effective Einstein equations on the brane form a closed system for spherically symmetric dark radiation. We determine exact dynamical and inhomogeneous solutions, which are shown to depend on the brane cosmological constant, on the dark radiation tidal charge and on its initial energy configuration. We identify the conditions defining these solutions as singular or as globally regular. Finally, we discuss the confinement of gravity to the vicinity of the brane and show that a phase transition to a regime where gravity is not bound to the brane may occur at short distances during the collapse of positive dark energy density on a realistic de Sitter brane. |
Revisão por Pares: | yes |
URI: | http://hdl.handle.net/11144/3100 |
metadata.dc.identifier.doi: | 10.1103/PhysRevD.66.124002 |
ISSN: | 2470-0010 2470-0029 |
Versão do editor: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.66.124002 |
Aparece nas colecções: | DCT - Artigos/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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0207173v2.pdf | Documento principal | 282,35 kB | Adobe PDF | Ver/Abrir |
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