BPS D-branes on non-supersymmetric cycles | Zendy

Ashoke Sen | Zendy

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BPS D-branes on non-supersymmetric cycles

Author(s) -

Ashoke Sen

Publication year - 1998

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/1998/12/021

Subject(s) - orbifold , moduli space , brane cosmology , physics , supersymmetry , string theory , gauge theory , boundary (topology) , brane , theoretical physics , string (physics) , boundary conformal field theory , mathematical physics , boundary value problem , geometry , mathematics , quantum mechanics , mathematical analysis , robin boundary condition , free boundary problem

In certain regions of the moduli space of K3 and Calabi-Yau manifolds,D-branes wrapped on non-supersymmetric cycles may give rise to stableconfigurations. We show that in the orbifold limit, some of these stableconfigurations can be described by solvable boundary conformal field theories.The world-volume theory of N coincident branes of this type is described by anon-supersymmetric U(N) gauge theory. At the boundary of the region ofstability, there are marginal deformations connecting the non-supersymmetricbrane to a pair of D-branes wrapped on supersymmetric cycles. We also discussvarious relationships between BPS and non-BPS D-branes of type II stringtheories.Comment: LaTeX file, epsf.sty, 26 pages, 2 figures, minor change

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