Results 61 to 70 of about 18,708 (249)
Gravitational baryogenesis in DGP brane cosmology
European Physical Journal C: Particles and Fields, 2018 We consider the imbalance of matter and antimatter by using a gravitational baryogenesis mechanism in the background of Dvali–Gabadadze–Porrati (DGP) brane cosmology.
K. Atazadeh
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Four-dimensional Brane–Chern–Simons Gravity and Cosmology
European Physical Journal C: Particles and Fields, 2021 From the field equations corresponding to a four-dimensional brane embedded in the five-dimensional spacetime of the Einstein–Chern–Simons theory for gravity, we find cosmological solutions that describe an accelerated expansion for a flat universe ...
F. Gómez, S. Lepe, P. Salgado
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Shortcuts in cosmological branes [PDF]
Nuclear Physics B - Proceedings Supplements, 2004 We aim at gathering information from gravitational interaction in the Universe, at energies where quantum gravity is required. In such a setup a dynamical membrane world in a space-time with scalar bulk matter described by domain walls, as well as a dynamical membrane world in empty Anti de Sitter space-time are analysed.
Abdalla, Elcio +2 more
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Anisotropic SD2 brane: accelerating cosmology and Kasner-like space-time from compactification
European Physical Journal C: Particles and Fields, 2017 Starting from an anisotropic (in all directions including the time direction of the brane) non-SUSY D2 brane solution of type IIA string theory we construct an anisotropic space-like D2 brane (or SD2 brane, for short) solution by the standard trick of a ...
Kuntal Nayek, Shibaji Roy
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Some Aspects of String Cosmology and the LHC
EPJ Web of Conferences, 2014 I discuss some (unconventional) aspects of String Cosmology of relevance to super symmetric dark matter searches at the Large Hadron Collider (LHC) at CERN.
Mavromatos Nick E.
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S-BRANES, NEGATIVE TENSION BRANES AND COSMOLOGY [PDF]
String Phenomenology, 2003 A general class of solutions of string background equations is studied and its physical interpretations are presented. These solutions correspond to generalizations of the standard black p-brane solutions to surfaces with curvature k=-1,0. The relation with the recently introduced S-branes is provided.
Quevedo, F., Tasinato, G., Zavala, I.
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Cosmology from quantum potential in brane–anti-brane system
Physics Letters B, 2015 Recently, some authors removed the big-bang singularity and predicted an infinite age of our universe. In this paper, we show that the same result can be obtained in string theory and M-theory; however, the shape of universe changes in different epochs ...
Alireza Sepehri
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A domain wall description of brane inflation and observational aspects
Physics Letters B, 2020 We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls.
R.M.P. Neves, F.F. Santos, F.A. Brito
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Brans-Dicke DGP brane cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2009 We consider a five dimensional DGP-brane scenario endowed with a non-minimally coupled scalar field within the context of Brans-Dicke theory. This theory predicts that the mass appearing in the gravitational potential is modified by the addition of the mass of the effective intrinsic curvature on the brane. We also derive the effective four dimensional
Atazadeh, K., Sepangi, H. R.
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