Braneworld remarks in Riemann-Cartan manifolds
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
07/03/2009
|
Resumo |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) We analyze the projected effective Einstein equation in a four-dimensional arbitrary manifold embedded in a five-dimensional Riemann-Cartan manifold. The Israel-Darmois matching conditions are investigated, in the context where the torsion discontinuity is orthogonal to the brane. Unexpectedly, the presence of torsion terms in the connection does not modify such conditions whatsoever, despite the modification in the extrinsic curvature and the connection. Then, by imposing the Z(2)-symmetry, the Einstein equation obtained via Gauss-Codazzi formalism is extended in order to now encompass the torsion terms. We also show that the factors involving contorsion change drastically the effective Einstein equation on the brane, as well as the effective cosmological constant. |
Formato |
9 |
Identificador |
http://dx.doi.org/10.1088/0264-9381/26/5/055007 Classical and Quantum Gravity. Bristol: Iop Publishing Ltd, v. 26, n. 5, p. 9, 2009. 0264-9381 http://hdl.handle.net/11449/24342 10.1088/0264-9381/26/5/055007 WOS:000263493200008 |
Idioma(s) |
eng |
Publicador |
Iop Publishing Ltd |
Relação |
Classical and Quantum Gravity |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |