Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-03-14
Nucl.Phys. B588 (2000) 552-564
Physics
High Energy Physics
High Energy Physics - Theory
13 pages; final version to appear in Nucl.Phys.B
Scientific paper
10.1016/S0550-3213(00)00519-8
We consider unitary Virasoro minimal models on the disk with Cardy boundary conditions and discuss deformations by certain relevant boundary operators, analogous to tachyon condensation in string theory. Concentrating on the least relevant boundary field, we can perform a perturbative analysis of renormalization group fixed points. We find that the systems always flow towards stable fixed points which admit no further (non-trivial) relevant perturbations. The new conformal boundary conditions are in general given by superpositions of 'pure' Cardy boundary conditions.
Recknagel Andreas
Roggenkamp Daniel
Schomerus Volker
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