Gandalf Lechner
Senior Lecturer (Associate Professor)
School of Mathematics, Cardiff University
» Contact
» my website at Cardiff University


My research focuses on applications of operator algebras to mathematical problems arising in quantum field theory. I am particularly interested in new approaches to the problem of rigorously constructing quantum field theory models. A novel line of research addresses this question via operator-algebraic deformations of quantum field theories, a topic also connected to non-commutative geometry and quantum field theory on non-commutative spaces.

A further research field of mine are unitary solutions of the Yang-Baxter equation, in particular their classification by subfactor methods and braid group characters and their application to integrable quantum field theories.

For more details about my research, you can have a look at my publications and talks.

TEACHING: In autumn 2019/20, I am teaching “Foundations of Mathematics I” (MA1005) and “Mathematical Foundations of Quantum Physics” (MA4014). Previous teaching can be found here.

GAPT (Geometry, Algebra, Mathematical Physics, Topology) research group: » Group Website » GAPT Seminar

IoP Mathematical and Theoretical Physics group: » Group Website