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Kondo flow invariants, twisted K-theory and Ramond-Ramond charges

Monnier, S (2008). Kondo flow invariants, twisted K-theory and Ramond-Ramond charges. Journal of High Energy Physics, 6(002):58pp.

Abstract

We take a worldsheet point of view on the relation between Ramond-Ramond charges, invariants of boundary renormalization group flows and K-theory. In compact super Wess-Zumino-Witten models, we show how to associate invariants of the generalized Kondo renormalization group flows to a given supersymmetric boundary state. The procedure involved is reminiscent of the way one can probe the Ramond-Ramond charge carried by a D-brane in conformal field theory, and the set of these invariants is isomorphic to the twisted K-theory of the Lie group. We construct various supersymmetric boundary states, and we compute the charges of the corresponding D-branes, disproving two conjectures on this subject. We find a complete agreement between our algebraic charges and the geometry of the D-branes.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Mathematics
Dewey Decimal Classification:510 Mathematics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Language:English
Date:June 2008
Deposited On:23 Jan 2013 14:39
Last Modified:08 Nov 2024 02:38
Publisher:IOP Publishing
ISSN:1029-8479
OA Status:Closed
Publisher DOI:https://doi.org/10.1088/1126-6708/2008/06/022
Related URLs:http://arxiv.org/abs/0803.1565

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