Families index theorem in supersymmetric WZW model and twisted K-theory

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The construction of twisted K-theory classes on a compact Lie group is reviewed using the supersymmetric Wess-Zumino-Witten model on a cylinder. The Quillen superconnection is introduced for a family of supercharges and the Chern character for the family is given and its relation to twisted cohomology is discussed.
Invited talk at "Problemi Attuali di Fisica Teorica", Vietri sul Mare, March 24, 2005. 12 pages AmsTex

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High Energy Physics - Theory, Algebraic Topology

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http://salesiana.dossiersoluciones.com/handle/123456789/53092

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-th/0504063
 http://arxiv.org/abs/hep-th/0504063

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arXiv