NDLI: Spherically symmetric thick branes cosmological evolution

Content Provider	Springer Nature Link
Author	Bernardini, A. E. Cavalcanti, R. T. Rocha, Roldão
Copyright Year	2014
Abstract	Spherically symmetric time-dependent solutions for the 5D system of a scalar field canonically coupled to gravity are obtained and identified as an extension of recent results obtained by Ahmed et al. (JHEP 1404:061. arXiv:1312.3576 [hep-th], 2014). The corresponding cosmology of models with regularized branes generated by such a 5D scalar field scenario is also investigated. It has been shown that the anisotropic evolution of the warp factor and consequently the Hubble like parameter are both driven by the radial coordinate on the brane, which leads to an emergent thick brane-world scenario with spherically symmetric time dependent warp factor. Meanwhile, the separability of variables depending on fifth dimension, $$y$$ , which is exhibited by the equations of motion, allows one to recover the extra dimensional profiles obtained in Ahmed et al. (2014), namely the extra dimensional part of the scale (warp) factor and the scalar field dependence on $$y$$ . Therefore, our results are mainly concerned with the time dependence of a spherically symmetric warp factor. Besides evincing possibilities for obtaining asymmetric stable brane-world scenarios, the extra dimensional profiles here obtained can also be reduced to those ones investigated in Ahmed et al. (2014).
Starting Page	1
Ending Page	17
Page Count	17
File Format	PDF
ISSN	00017701
Journal	General Relativity and Gravitation
Volume Number	47
Issue Number	1
e-ISSN	15729532
Language	English
Publisher	Springer US
Publisher Date	2014-12-06
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Brane-world Bianchi cosmology Warp factor Thick branes Theoretical, Mathematical and Computational Physics Classical and Quantum Gravitation, Relativity Theory Differential Geometry Quantum Physics Astronomy, Astrophysics and Cosmology Cosmology
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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