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Abstract:

We build five-dimensional spherically symmetric wormholes within the DGP theory. We calculate the energy localized on the shell, and we find that the wormholes could be supported by matter not violating the energy conditions. We also show that solitonic shells characterized by zero pressure and zero energy can exist; thereafter we make some observations regarding their dynamic on the phase plane. In addition, we concentrate on the mechanical stability of wormholes under radial perturbation preserving the original spherical symmetry. In order to do that, we consider linearized perturbations around static solutions. We obtain that for certain values of the mass parameter μ and the crossover scale rc stable wormholes exist with very small values of squared speed sound. Unlike the case of Einstein's gravity, this type of wormholes fulfills the energy conditions. Finally, we show that the gravitational field associated with these wormhole configurations is attractive for μ>0. © 2010 The American Physical Society.

Registro:

Documento: Artículo
Título:Wormholes and solitonic shells in five-dimensional DGP theory
Autor:Richarte, M.G.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina
Año:2010
Volumen:82
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevD.82.044021
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v82_n4_p_Richarte

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Citas:

---------- APA ----------
(2010) . Wormholes and solitonic shells in five-dimensional DGP theory. Physical Review D - Particles, Fields, Gravitation and Cosmology, 82(4).
http://dx.doi.org/10.1103/PhysRevD.82.044021
---------- CHICAGO ----------
Richarte, M.G. "Wormholes and solitonic shells in five-dimensional DGP theory" . Physical Review D - Particles, Fields, Gravitation and Cosmology 82, no. 4 (2010).
http://dx.doi.org/10.1103/PhysRevD.82.044021
---------- MLA ----------
Richarte, M.G. "Wormholes and solitonic shells in five-dimensional DGP theory" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 82, no. 4, 2010.
http://dx.doi.org/10.1103/PhysRevD.82.044021
---------- VANCOUVER ----------
Richarte, M.G. Wormholes and solitonic shells in five-dimensional DGP theory. Phys Rev D Part Fields Gravit Cosmol. 2010;82(4).
http://dx.doi.org/10.1103/PhysRevD.82.044021