Integrable defects at junctions within a network

Ed Corrigan, Cristina Zambon

Research output: Contribution to journalArticlepeer-review


The purpose of this article is to explore the properties of integrable, purely transmitting, defects placed at the junctions of several one-dimensional domains within a network. The defect sewing conditions turn out to be quite restrictive - for example, requiring the number of domains meeting at a junction to be even - and there is a clear distinction between the behaviour of conformal and massive integrable models. The ideas are mainly developed within classical field theory and illustrated using a variety of field theory models defined on the branches of the network, including both linear and nonlinear examples.
Original languageEnglish
Article number484001
JournalJournal of Physics A: Mathematical and Theoretical
Issue number48
Publication statusPublished - 10 Nov 2020

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