`Blowing up' D-branes on Non-supersymmetric Cycles

Details `Blowing up' D-branes on Non-supersymmetric Cycles `Blowing up' D-branes on Non-supersymmetric Cycles

1999-06-15

arxiv.org/abs/hep-th/9906109v1

JHEP 9909:004,1999

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 24 pages, 4 figures, epsf.sty

Scientific paper

10.1088/1126-6708/1999/09/004

In the orbifold limit of K3, one can give exact conformal field theory description of D-branes wrapped on certain non-supersymmetric cycles of K3. We study the effect of switching on the `non-geometric blow up modes' corresponding to anti-symmetric tensor gauge field flux through the 2-cycles on these D-branes. Working to first order in the blow up parameter, we determine the region of the moduli space in which these D-branes are stable. Across the boundary of this region, the D-brane wrapped on the non-supersymmetric cycle decays to a pair of D-branes, each wrapped on a supersymmetric cycle, via a second order phase transition.

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