Quantum Monte Carlo study of the dominating pairing symmetry in doped honeycomb lattice
Zhu Xingchuan1, Ying Tao2, Guo Huaiming3, †, Feng Shiping1
       

The effective susceptibility of d-wave channel as a function of filling at several temperatures for (a) U=2t, (b) U =3t, (c) U=4t; (d) χ eff d as a function of filling for several values of U at a fixed temperature. Insets in panels (b) and (c) show the corresponding average signs. In all figures, the linear lattice size is L = 12.