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Modular invariant partition functions for non-compact G/Ad(H) models
2011 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 83Article in journal (Refereed) Published
Abstract [en]

We propose a spectrum for a class of gauged non-compact G/Ad(H) WZNW models, including spectrally flowed images of highest, lowest, and mixed extremal weight modules. These are combined into blocks whose characters, due to the Lorentzian signature of the target space, are divergent and treated as formal expressions in need of regularisation. Assuming that this is possible, we show that these extended characters transform linearly under modular transformations, and can be used to write down modular invariant partition functions.

Place, publisher, year, edition, pages
2011. Vol. 83
National Category
Subatomic Physics
Research subject
Theoretical Physics
Identifiers
URN: urn:nbn:se:uu:diva-236924DOI: 10.1103/PhysRevD.83.086007OAI: oai:DiVA.org:uu-236924DiVA: diva2:766027
Available from: 2014-11-25 Created: 2014-11-25 Last updated: 2017-12-05

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Fjelstad, Jens

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