Type IIB string theory, S-duality, and generalized cohomology

Igor Kriz, Hisham Sati

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Abstract

In the presence of background Neveu-Schwarz flux, the description of the Ramond-Ramond fields of type IIB string theory using twisted K-theory is not compatible with S-duality. We argue that other possible variants of twisted K-theory would still not resolve this issue. We propose instead a connection of S-duality with elliptic cohomology, and a possible T-duality relation of this to a previous proposal for IIA theory, and higher-dimensional limits. In the process, we obtain some other results which may be interesting on their own. In particular, we prove a conjecture of Witten that the 11-dimensional spin cobordism group vanishes on K (ℤ, 6), which eliminates a potential new θ-angle in type IIB string theory.

Original languageEnglish (US)
Pages (from-to)639-664
Number of pages26
JournalNuclear Physics B
Volume715
Issue number3
DOIs
StatePublished - May 30 2005

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Type IIB string theory, S-duality, and generalized cohomology. / Kriz, Igor; Sati, Hisham.

In: Nuclear Physics B, Vol. 715, No. 3, 30.05.2005, p. 639-664.

Research output: Contribution to journalArticle

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