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  Symmetries of perturbed conformal field theories

Fredenhagen, S., Gaberdiel, M. R., & Keller, C. A. (2007). Symmetries of perturbed conformal field theories. Journal of Physics A, 40(45), 13685-13709. doi:10.1088/1751-8113/40/45/012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4778-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4779-7
Genre: Journal Article

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Fredenhagen, Stefan1, Author              
Gaberdiel, M. R., Author
Keller, Christoph A., Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: The symmetries of perturbed conformal field theories are analysed. We explain which generators of the chiral algebras of a bulk theory survive a perturbation by an exactly marginal bulk field. We also study the behaviour of D-branes under current-current bulk deformations. We find that the branes always continue to preserve as much symmetry as they possibly can, i.e. as much as is preserved in the bulk. We illustrate these findings with several examples, including permutation branes in WZW models and B-type D-branes in Gepner models.

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 Dates: 2007-11-09
 Publication Status: Published in print
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 Identifiers: eDoc: 318128
DOI: 10.1088/1751-8113/40/45/012
Other: arXiv:0707.2511
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Title: Journal of Physics A
Source Genre: Journal
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Pages: - Volume / Issue: 40 (45) Sequence Number: - Start / End Page: 13685 - 13709 Identifier: -