Symmetric mass generation of interacting chiral fermions on a one-dimensional lattice without fermion doubling
This work demonstrates Symmetric Mass Generation (SMG) in a one-dimensional lattice model of chiral fermions without fermion doubling. By tuning an auxiliary interaction, researchers showed that a gap opens in the system when specific Luttinger parameters are below a critical value, while preserving underlying symmetries. This is achieved using a specialized tangent-fermion lattice approach.