Conical singularities regularized in warped six-dimensional flux compactification and their induced brane cosmology

Abstract

We discuss the regularization of codimension-2 singularities in warped six-dimensional Einstein-Maxwell axisymmetric models by replacing them by codimension-1 branes of a ring form, situated around the axis of symmetry. Further we consider the case of one capped regularized conical brane of codimension one and study the cosmological evolution which is induced on it as it moves in between the known {\it static} bulk and cap solutions. We present the resulting brane Friedmann equation which gives a dominant five-dimensional ${\rho }^2$ energy density term at high energies and a term linear to the energy density at low energies with, however, negative coefficient in the small four-brane radius limit (i.e. with negative effective Newton's constant)

14 pages

References in corpus (23)

• Phenomenology of Hidden Valleys at Hadron Colliders
• Standard 4d gravity on a brane in six dimensional flux compactifications
• The cosmological constant and dark energy in braneworlds
• Scaling Solutions to 6D Gauged Chiral Supergravity
• Induced cosmology on a regularized brane in six-dimensional flux compactification
• Induced gravity on intersecting brane-worlds Part II: Cosmology
• Cosmological evolution of regularized branes in 6D warped flux compactifications
• String-Like BTZ on Codimension-2 Braneworlds in the Thin Brane Limit
• Isolated Minkowski vacua, and stability analysis for an extended brane in the rugby ball
• Gravity on an extended brane in six-dimensional warped flux compactifications
• A Brane World in an Arbitrary Number of Dimensions without Z_2 Symmetry
• Dynamical solutions of warped six dimensional supergravity
• Brane cosmological solutions in six-dimensional warped flux compactifications
• Black Holes on Thin 3-branes of Codimension-2 and their Extension into the Bulk
• Rotating Black Holes on Codimension-2 Branes
• Modified Friedmann Equation and Inflation in Warped Codimension-two Braneworld
• Supersymmetric codimension-two branes in six-dimensional gauged supergravity
• Low energy effective theory on a regularized brane in six-dimensional flux compactifications
• Pseudo-3-Branes in a Curved 6D Bulk
• Hybrid compactifications and brane gravity in six dimensions
• Curvature corrections to the low energy effective theory in 6D regularized braneworlds
• Flat-brane Compactifications in Supergravity Induced by Scalars
• Cosmological Kaluza-Klein branes in black brane spacetimes