28 November 2019
King's College London
Europe/London timezone

Questions and enquiries can be directed to Dries Seynaeve.

Fermions and the spontaneous breaking of scale invariance

28 Nov 2019, 14:45
30m
Seminar Room 3, Prideaux Building, St Thomas' Campus (King's College London)

Seminar Room 3, Prideaux Building, St Thomas' Campus

King's College London

163 Lambeth Palace Rd, South Bank, London SE1 7JU
Talk Session 2

Speaker

Charlie Cresswell-Hogg (University of Sussex)

Description

We present the first example of the Bardeen-Moshe-Bander phenomenon in a purely fermionic relativistic quantum field theory. In this talk I will give an overview of the phenomenon, in which a scale invariant theory may nonetheless have massive excitations due to strong coupling effects, before explaining how this situation arises in a purely fermionic field theory: a less symmetric version of the well studied Gross-Neveu model in three dimensions. I will conclude by discussing the relation of this fermionic effect to the original phenomenon in scalar field theories, and connections to certain “bosonisation” dualities.

Author

Charlie Cresswell-Hogg (University of Sussex)

Presentation materials