On D-branes from Gauged Linear Sigma Models

Details On D-branes from Gauged Linear Sigma Models On D-branes from Gauged Linear Sigma Models

2000-07-10

arxiv.org/abs/hep-th/0007075v2

Nucl.Phys. B593 (2001) 155-182

Physics

High Energy Physics

High Energy Physics - Theory

31+1 pages; LaTex; (v2) Results now extended to include weighted projective spaces. Typos corrected

Scientific paper

10.1016/S0550-3213(00)00611-8

We study both A-type and B-type D-branes in the gauged linear sigma model by considering worldsheets with boundary. The boundary conditions on the matter and vector multiplet fields are first considered in the large-volume phase/non-linear sigma model limit of the corresponding Calabi-Yau manifold, where we also find that we need to add a contact term on the boundary. These considerations enable to us to derive the boundary conditions in the full gauged linear sigma model, including the addition of the appropriate boundary contact terms, such that these boundary conditions have the correct non-linear sigma model limit. Most of the analysis is for the case of Calabi-Yau manifolds with one Kahler modulus (including those corresponding to hypersurfaces in weighted projective space), though we comment on possible generalizations.

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