D-branes on T^4/Z_2 and T-Duality
Ilka Brunner, Rami Entin, Christian Romelsberger
TL;DR
This paper analyzes D-branes on T^4/Z_2 orbifolds using boundary state formalism, providing explicit formulas and studying their transformation under T-duality, enhancing understanding of brane behavior at orbifold singularities.
Contribution
It offers explicit boundary state formulas for D-branes on T^4/Z_2 and examines their T-duality transformations within an exact CFT framework.
Findings
Explicit boundary states for untwisted and twisted sectors
Transformation laws of boundary states under T-duality
Comparison with world volume analysis results
Abstract
In this note we discuss D-branes on T^4/Z_2 using the boundary states formalism. Explicit formulas for the untwisted boundary states inherited from the underlying T^4 and twisted states corresponding to branes wrapping collapsed 2-cycles at the orbifold singularities are given. The exact CFT description of the orbifold makes it possible to study how the boundary states transform under R_i -> 1/R_i transformation on all directions of the underlying T^4. We compare their transformation law with results obtained from world volume considerations.
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