On Perturbations of Unitary Minimal Models by Boundary Condition Changing Operators
Abstract
In this note we consider boundary perturbations in the A-Series unitary minimal models by phir,r+2 fields on superpositions of boundaries. In particular, we consider perturbations by boundary condition changing operators. Within conformal perturbation theory we explicitly map out the space of perturbative renormalisation group flows for the example phi1,3 and find that this sheds light on more general phir,r+2 perturbations. Finally, we find a simple diagrammatic representation for the space of flows from a single Cardy boundary condition.
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