Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-11-08
JHEP 0101:038,2001
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX2e, 50 pages, 5 figures. V3: final version to appear on JHEP (part of a section moved to an appendix, titles of some refe
Scientific paper
10.1088/1126-6708/2001/01/038
Boundary states for D-branes at orbifold fixed points are constructed in close analogy with Cardy's derivation of consistent boundary states in RCFT. Comments are made on the interpretation of the various coefficients in the explicit expressions, and the relation between fractional branes and wrapped branes is investigated for $\mathbb{C}^2/\Gamma$ orbifolds. The boundary states are generalised to theories with discrete torsion and a new check is performed on the relation between discrete torsion phases and projective representations.
Billo' Marco
Craps Ben
Roose Frederik
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