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Fractional Branes in Landau-Ginzburg Orbifolds

We construct fractional branes in Landau-Ginzburg orbifold categories and study their behavior under marginal closed string perturbations. This approach is shown to be more general than the rational boundary state construction. In particular we find new D-branes on the quintic -- such as a single D0-brane -- which are not restrictions of bundles on the ambient projective space. We also exhibit a family of deformations of the D0-brane in the Landau-Ginzburg category parameterized by points on the Fermat quintic.

preprint2004arXivOpen access
Sujay K. AshokEleonora Dell'AquilaDuiliu-Emanuel Diaconescu
hep-th
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Sujay K. AshokEleonora Dell'AquilaDuiliu-Emanuel Diaconescu

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