Supersymmetric D-brane bound states withfield and higher dimensional instantons on noncommutative geometry
- 12 July 2001
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 64 (4)
- https://doi.org/10.1103/physrevd.64.046003
Abstract
We classify supersymmetric D0-Dp bound states with a non-zero B-field by considering T-dualities of intersecting branes at angles. Especially, we find that the D0-D8 system with the B-field preserves 1/16, 1/8 and 3/16 of supercharges if the B-field satisfies the ``(anti-)self-dual'' condition in dimension eight. The D0-branes in this system are described by eight dimensional instantons on non-commutative R^8. We also discuss the extended ADHM construction of the eight-dimensional instantons and its deformation by the B-field. The modified ADHM equations admit a sort of the `fuzzy sphere' (embeddings of SU(2)) solution.Comment: 20 pages, LaTeX file, typos corrected and references addeKeywords
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