منابع مشابه
A 6 - D Brane World Model
We consider a 6D space-time which is periodic in one of the extra dimensions and compact in the other. The periodic direction is defined by two 4-brane boundaries. Both static and non-static exact solutions, in which the internal spacetime has constant radius of curvature, are derived. In the case of static solutions, the brane tensions must be tuned as in the 5D Randall-Sundrum model, however,...
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A (1 + d)-dimensional thick ”brane world” model with varying Λ-term is considered. The model is generalized to the case of a chain of Ricci-flat internal spaces when the matter source is an anisotropic perfect fluid. The ”horizontal” part of potential is obtained in the Newtonian approximation. In the multitemporal case (with a Λ-term) a set of equations for potentials is presented. [email protected]...
متن کاملA Brane World Model with Intersecting Branes
A brane world model is investigated, in which there are many branes that may intersect and self intersect. One of the branes, being a 3-brane, represents our spacetime, while the other branes, if they intersect our brane world, manifest themselves as matter in our 3-brane. It is shown that such a matter encompasses dust of point particles and higher dimensional p-branes, and all those objects f...
متن کاملSimple Brane World Scenario with Positive Five Dimensional Cosmological Constant
We present a simple brane-world model in five dimensions. In this model we do not need any fine-tuning between the five dimensional cosmological constant and the brane tension to obtain four dimensional flat Minkowski space. The spacetime of our solution has no naked singularities. Further the compactification scale of the fifth direction is automatically determined. [email protected]...
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We consider a six dimensional brane world model with asymmetric warp factors for time and both extra spatial coordinates, y and z. We derive the set of differential equations governing the shortest graviton path and numerically solve it for AdS-Schwarzschild and AdSReissner-Nordström bulks. In both cases we derive a set of conditions for the existence of shortcuts in bulks with shielded singula...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2001
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.64.044021