On string backgrounds and (logarithmic) CFT

Abstract

We discuss the link between string backgrounds and the associated world-sheet CFTs. In the search for new backgrounds and CFTs, Penrose limits and Lie algebra contractions are important tools. The Nappi-Witten construction and the recently discovered logarithmic CFT by Bakas and Sfetsos, are considered as illustrations. We also speculate on possible extensions.

9 pages, invited contribution to the proceedings on the IX-th Workshop on Mathematical Physics and Applications, Rabat, 23-25 February 2004

Cited by in corpus (3)

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