Quantum Monte Carlo study of the dominating pairing symmetry in doped honeycomb lattice |
(a) The effective susceptibility of several pairing channels as a function of filling on L = 12 lattice. (b) Size dependence of the effective susceptibility of d-wave symmetry. The inset shows the corresponding average signs for the linear sizes L=8,10,12,16. In both figures, the temperature is T=1/12, and the Hubbard interaction is U=2t. |