Fig. 8: Comparison of the full self-energy between MET and QMC in the FL region (h/J = 3.6 > hc/J).
From: Identification of non-Fermi liquid fermionic self-energy from quantum Monte Carlo data

The solid dots correspond to the QMC data, and the hollow dots correspond to a numerical summation of the Matsubara sums in Eq. (11).