2007

Symmetries of perturbed conformal field theories

Fredenhagen, Stefan, Gaberdiel, Matthias R., Keller, Christoph A.

Understand

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.

Built on

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Then

S. Förste and D. Roggenkamp, Current current deformations of conformal field theories, and WZW models
2003
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2003
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2003
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2004
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K. Hori and J. Walcher, F-term equations near Gepner points
2005
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S. Fredenhagen and T. Quella, Generalised permutation branes
2005
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I. Brunner and M.R. Gaberdiel, Matrix factorisations and permutation branes
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I. Brunner, M.R. Gaberdiel and C.A. Keller, Matrix factorisations and D-branes on K3
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S. Fredenhagen and M.R. Gaberdiel, Generalised N = 2 permutation branes
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S. Fredenhagen, M.R. Gaberdiel and C.A. Keller, Bulk induced boundary perturbations
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