# On Perturbations of Unitary Minimal Models by Boundary Condition Changing Operators

Source: [On Perturbations of Unitary Minimal Models by Boundary Condition Changing Operators](<https://www.sota2.com/research/paper/68fa25842c2a3760193b1084>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T10:46:09.502Z

Authors: K. Graham

Published: 2001-11-22T16:34:33.000Z

## Abstract

In this note we consider boundary perturbations in the A-Series unitary minimal models by phi\_{r,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 phi\_{1,3} and find that this sheds light on more general phi\_{r,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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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-th/0111205>)

[PDF](<https://arxiv.org/pdf/hep-th/0111205.pdf>)