From G 2 to SO(8): Emergence and reminiscence of supersymmetry and triality
Abstract We construct a (1+1)-dimension continuum model of 4-component fermions incorporating the exceptional Lie group symmetry G 2.Four gapped and five gapless phases are identified via the one-loop renormalization group analysis.The gapped phases are controlled by four different stable SO(8) Gross-Neveu fixed points, among which three exhibit an