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Register a new userInduced cosmology on a regularized brane in six-dimensional flux compactification
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Added by
Antonios Papazoglou
Publication date
2007
fields
Physics
and research's language is
English
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We consider a six-dimensional Einstein-Maxwell system compactified in an axisymmetric two-dimensional space with one capped regularized conical brane of codimension one. We study the cosmological evolution which is induced on the regularized brane as it moves in between known static bulk and cap solutions. Looking at the resulting Friedmann equation, we see that the brane cosmology at high energies is dominated by a five-dimensional rho^2 energy density term. At low energies, we obtain a Friedmann equation with a term linear to the energy density with, however, negative coefficient in the small four-brane radius limit (i.e. with negative effective Newtons constant). We discuss ways out of this problem.
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