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

(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.