Fig. 2
From: Superconductivity from the condensation of topological defects in a quantum spin-Hall insulator
Gross-Neveu semimetal-QSH transition. a Correlation ratio \(R_\chi ^{{\mathrm{QSH}}}\) [Eq. (5)] for different system sizes L. The extrapolation of the crossing points of \(R_\chi ^{{\mathrm{QSH}}}\) for L and L + 6 in the inset gives the critical value λc1 = 0.0187(2). b Finite-size scaling based on Eq. (6) gives an inverse correlation length exponent 1/v = 1.14(9). c Estimation of the anomalous dimension η = 0.79(5)
