Ghost D-branes | Zendy

Takuya Okuda | Zendy; Tadashi Takayanagi | Zendy

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Ghost D-branes

Author(s) -

Takuya Okuda,

Tadashi Takayanagi

Publication year - 2006

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2006/03/062

Subject(s) - superstring theory , physics , heterotic string theory , brane cosmology , brane , string (physics) , mathematical physics , gauge symmetry , theoretical physics , gauge theory , duality (order theory) , symmetry (geometry) , homogeneous space , supersymmetry , pure mathematics , geometry , mathematics

We define a ghost D-brane in superstring theories as an object that cancelsthe effects of an ordinary D-brane. The supergroups U(N|M) and OSp(N|M) ariseas gauge symmetries in the supersymmetric world-volume theory of D-branes andghost D-branes. A system with a pair of D-brane and ghost D-brane located atthe same location is physically equivalent to the closed string vacuum. Whenthey are separated, the system becomes a new brane configuration. We generalizethe type I/heterotic duality by including n ghost D9-branes on the type I sideand by considering the heterotic string whose gauge group is OSp(32+2n|2n).Motivated by the type IIB S-duality applied to D9- and ghost D9-branes, we alsofind type II-like closed superstrings with U(n|n) gauge symmetry.Comment: 49 pages, 6 figures, harvmac. v2: references and acknowledgements adde

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