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arXiv · hep-th/0602135

Fractional Branes in Non-compact Type IIA Orientifolds

Jaydeep Majumder·Subir Mukhopadhyay·Koushik Ray
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Abstract

We study fractional D-branes in the Type-IIA theory on a non-compact orientifold of the orbifold C^3/Z_3 in the boundary state formalism. We find that the fractional D0-branes of the orbifold theory become unstable due to the presence of a tachyon, while there is a stable D-instanton whose tachyon gets projected out. We propose that the D-instanton is obtained after tachyon condensation. We evidence this by calculating the Whitehead group of the Abelian category of objects corresponding to the boundary states as being isomorphic to Z_2.

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Jaydeep Majumder, Subir Mukhopadhyay, Koushik Ray. 2006-10-18. Fractional Branes in Non-compact Type IIA Orientifolds. https://doi.org/10.1088/1126-6708%2F2006%2F11%2F008

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