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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Maths HEP Lunchtime Seminars: Supersymmetric integrable boundary QFT in 1+1 dimensions

Presented by Rafael Nepomechie (Miami),

30 November 2001 13:00 in CM221

"Contrary to conventional wisdom, imposing on a quantum field theory with boundary the combined constraints of integrability and supersymmetry does not imply that the boundary interactions must be trivial. Specifically, we argue that the N=1 supersymmetric sine-Gordon model with boundary has a two-parameter family of boundary interactions which preserves both integrability and supersymmetry. We also propose the corresponding boundary S matrix for the first supermultiplet of breathers. We then examine RG boundary flows in two closely related models: the scaling supersymmetric Yang-Lee model, and the supersymmetric sinh-Gordon model. Finally, we present some results for the N=2 case."

Contact daniele.dorigoni@durham.ac.uk or jyotirmoy.bhattacharya@durham.ac.uk for more information