Fermion masses without symmetry breaking in two spacetime dimensions

  title={Fermion masses without symmetry breaking in two spacetime dimensions},
  author={Yoni BenTov},
  journal={Journal of High Energy Physics},
  • Yoni BenTov
  • Published 29 November 2014
  • Physics
  • Journal of High Energy Physics
A bstractI study the prospect of generating mass for symmetry-protected fermions without breaking the symmetry that forbids quadratic mass terms in the Lagrangian. I focus on 1+1 spacetime dimensions in the hope that this can provide guidance for interacting fermions in 3+1 dimensions. I first review the SO(8) Gross-Neveu model and emphasize a subtlety in the triality transformation. Then I focus on the “m = 0” manifold of the SO(7) Kitaev-Fidkowski model. I argue that this theory exhibits a… 
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