Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/24316
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Bernabéu, José | - |
dc.contributor.author | Espinoza, Catalina | - |
dc.contributor.author | Mavromatos, Nikolaos E. | - |
dc.date.accessioned | 2010-05-14T09:36:52Z | - |
dc.date.available | 2010-05-14T09:36:52Z | - |
dc.date.issued | 2010-04-15 | - |
dc.identifier.citation | Physical Review - Section D - Particles and Fields 81 (8): 084002 (2010) | en_US |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/10261/24316 | - |
dc.description.abstract | We discuss the linearization of Einstein equations in the presence of a cosmological constant, by expanding the solution for the metric around a flat Minkowski space-time. We demonstrate that one can find consistent solutions to the linearized set of equations for the metric perturbations, in the Lorentz gauge, which are not spherically symmetric, but they rather exhibit a cylindrical symmetry. We find that the components of the gravitational field satisfying the appropriate Poisson equations have the property of ensuring that a scalar potential can be constructed, in which both contributions, from ordinary matter and Lambda > 0, are attractive. In addition, there is a novel tensor potential, induced by the pressure density, in which the effect of the cosmological constant is repulsive. We also linearize the Schwarzschild-de Sitter exact solution of Einstein's equations ( due to a generalization of Birkhoff's theorem) in the domain between the two horizons. We manage to transform it first to a gauge in which the 3-space metric is conformally flat and, then, make an additional coordinate transformation leading to the Lorentz gauge conditions. We compare our non-spherically symmetric solution with the linearized Schwarzschild-de Sitter metric, when the latter is transformed to the Lorentz gauge, and we find agreement. The resulting metric, however, does not acquire a proper Newtonian form in terms of the unique scalar potential that solves the corresponding Poisson equation. Nevertheless, our solution is stable, in the sense that the physical energy density is positive. | en_US |
dc.description.sponsorship | We wish to thank D. Espriu, V.A. Mitsou, M. Quirós, R. Rebolo and M. Sereno for interesting discussions. We also acknowledge helpful suggestions and comments by the anonymous referee. The research work of J.B. and C.E. is supported in part by the Grants of the Spanish Ministry of Science and Innovation FPA 2008-02878 and of the Valencia Generalitat PROMETEO 2008/004, while that of N.E.M. is partly supported by the European Union, through the FP6 Marie Curie Research and Training Network UniverseNet (MRTN-CT-2006-035863). | en_US |
dc.format.extent | 179739 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | American Physical Society | en_US |
dc.rights | openAccess | en_US |
dc.title | Cosmological constant and local gravity | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1103/PhysRevD.81.084002 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/ 10.1103/PhysRevD.81.084002 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | artículo | - |
Aparece en las colecciones: | (IFIC) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Cosmological.pdf | 175,53 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
15
checked on 13-abr-2024
WEB OF SCIENCETM
Citations
13
checked on 26-feb-2024
Page view(s)
358
checked on 23-abr-2024
Download(s)
317
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.