D-Brane Instantons and K-Theory Charges | Zendy

Juan Maldacena | Zendy; Nathan Seiberg | Zendy

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D-Brane Instantons and K-Theory Charges

Author(s) -

Juan Maldacena,

Nathan Seiberg

Publication year - 2001

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 - 10.1088/1126-6708/2001/11/062

Subject(s) - instanton , theoretical physics , interpretation (philosophy) , brane cosmology , physics , brane , homology (biology) , charge (physics) , mathematics , pure mathematics , mathematical physics , computer science , quantum mechanics , programming language , biochemistry , chemistry , gene

We discuss some physical issues related to the K-theoretic classification ofD-brane charges, putting an emphasis on the role of D-brane instantons. Therelation to D-instantons provides a physical interpretation to the mathematicalalgorithm for computing K-theory known as the ``Atiyah-Hirzebruch spectralsequence.'' Conjecturally, a formulation in terms of D-instantons leads to acomputationally useful formulation of K-homology in general. As an applicationand illustration of this viewpoint we discuss some issues connected withD-brane charges associated with branes in WZW models. We discuss the case ofSU(3) in detail, and comment on the general picture of branes in SU(N), basedon a recent result of M. Hopkins.Comment: 44 pages, harvmac, b-mod

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