D-branes in lens spaces
P. Bordalo, A. Wurtz
Abstract
We realize the CFT with target a lens space SU(2)/Zl as a simple current construction. This allows us to compute the boundary states and the annuli coefficients, and in particular to study the B-type branes, in purely algebraic terms. Several issues, like the appearance of fractional branes and symmetry breaking boundary conditions, can be addressed more directly in this approach than in a more geometric treatment.
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