Results 61 to 70 of about 1,088 (220)
Journal of Cosmology and Astroparticle Physics, 2014 Disformally coupled cosmologies arise from Dirac-Born-Infeld actions in Type II string theories, when matter resides on a moving hidden sector D-brane. Since such matter interacts only very weakly with the standard model particles, this scenario can provide a natural origin for the dark sector of the universe with a clear geometrical interpretation ...
Ivonne Zavala +4 more
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Reports on Progress in Physics, 2004 57 pages, 6 figures, invited review for Rep.
Carsten van de Bruck +2 more
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On T-duality in brane gas cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2003 In the context of homogeneous and isotropic superstring cosmology, the T-duality symmetry of string theory has been used to argue that for a background space-time described by dilaton gravity with strings as matter sources, the cosmological evolution of the Universe will be nonsingular.
Robert H. Brandenberger +2 more
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Supergravity brane cosmologies [PDF]
Physical Review D, 2000 7 pages, In press, Physical Review ...
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Non-singular black holes with a zero-shear S-brane
Journal of High Energy Physics, 2021 We propose a construction with which to resolve the black hole singularity and enable an anisotropic cosmology to emerge from the inside of the hole. The model relies on the addition of an S-brane to the effective action which describes the geometry of ...
Robert Brandenberger +2 more
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On brane stabilization and the cosmological constant [PDF]
Physics Letters B, 2001 We address the problem of the cosmological constant within the Randall-Sundrum scenario with a brane stabilization mechanism. We consider brane tensions of general form. We examine the conditions under which a small change of the positive tension of the first brane can be absorbed in a small modification of the two-brane configuration, instead of ...
Nikolaos Tetradis, Nikolaos Tetradis
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Brane cosmology with an anisotropic bulk [PDF]
Journal of High Energy Physics, 2004 In the context of brane cosmology, a scenario where our universe is a 3+1-dimensional surface (the ``brane'') embedded in a five-dimensional spacetime (the ``bulk''), we study geometries for which the brane is anisotropic - more specifically Bianchi I - though still homogeneous.
Daniele A. Steer +5 more
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Spinning toroidal brane cosmology; A classical and quantum survey
Nuclear Physics B, 2020 We construct a cosmological model based on a free particle model which is constrained on an embedded toroidal brane, with a general rotation around a specific axis in the bulk space.
Salman Abarghouei Nejad +2 more
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Brane cosmology and naked singularities [PDF]
Physics Letters B, 2001 12 ...
Anne-Christine Davis, Ph. Brax
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