Jaydeep Majumder et al JHEP11(2006)008 doi:10.1088/1126-6708/2006/11/008
Fractional branes in non-compact type IIA orientifolds
Jaydeep Majumder1, Subir Mukhopadhyay2 and Koushik Ray3
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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 2.
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E-print Number: hep-th/0602135
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Issue 11 (November 2006)
Received 8 March 2006, accepted for publication 17 October 2006
Published 6 November 2006
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Fractional branes in non-compact type IIA orientifolds
Jaydeep Majumder et al JHEP11(2006)008
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