Numerical lattice simulation confirms spontaneous time-reversal symmetry breaking and gap opening in a helical Luttinger liquid at the Dirac point above a critical Luttinger parameter.
Stacey,Eliminating lattice fermion doubling, Phys
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Lattice fermion simulation of spontaneous time-reversal symmetry breaking in a helical Luttinger liquid
Numerical lattice simulation confirms spontaneous time-reversal symmetry breaking and gap opening in a helical Luttinger liquid at the Dirac point above a critical Luttinger parameter.