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Research — Topological phases and topological phase transitions

Four-fermion image Image: Signatures of a phase transition in a simple field theory that involves four-fermion interactions, from arXiv:1609.08541. Unlike conventional systems, the symmetries of the system are the same in both phases on either side of the transition. Despite the identical symmetries, the fermions are massive for large four-fermion coupling G but massless for small G.

Related publication: arXiv:1609.08541

A longer discussion of this project will soon be completed in October 2017.

Last modified 1 October 2017

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