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21 papers · 2 filters
A new wrinkle on the enhancon
Dumitru Astefanesei, Robert C. Myers
We generalize the basic enhancon solution of Johnson, Peet and Polchinski by constructing solutions without spherical symmetry. A careful consideration of boundary conditions at th…
Dynamical Stability of Six-Dimensional Warped Brane-Worlds
C. P. Burgess, J. M. Cline, N. R. Constable +1
We study a generalization of the Randall-Sundrum mechanism for generating the weak/Planck hierarchy, which uses two rather than one warped extra dimension, and which requires no ne…
An integrable noncommutative version of the sine--Gordon system
Marcus T. Grisaru, Silvia Penati
Using the bicomplex approach we discuss a noncommutative system in two--dimensional Euclidean space. It is described by an equation of motion which reduces to the ordinary sine--Go…
Brane-Antibrane Inflation in Orbifold and Orientifold Models
C. P. Burgess, P. Martineau, F. Quevedo +2
We analyse the cosmological implications of brane-antibrane systems in string-theoretic orbifold and orientifold models. In a class of realistic models, consistency conditions requ…
Brane Gases on K3 and Calabi-Yau Manifolds
Damien A. Easson
We initiate the study of Brane Gas Cosmology (BGC) on manifolds with non-trivial holonomy. Such compactifications are required within the context of superstring theory in order to…
Loitering Phase in Brane Gas Cosmology
Robert Brandenberger, Damien A. Easson, Dagny Kimberly
Brane Gas Cosmology (BGC) is an approach to M-theory cosmology in which the initial state of the Universe is taken to be small, dense and hot, with all fundamental degrees of freed…