%0 Generic %1 Ma2011 %A Ma, Tianxing %A Huang, Zhongbing %A Hu, Feiming %A Lin, Hai-Qing %D 2011 %K chiral %T Pairing in graphene: A quantum Monte Carlo study %U http://arxiv.org/abs/1109.6458 %X To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in the t-U-V Hubbard model on a honeycomb lattice. For V=0 and close to half filling, we find that pairing with d+id symmetry dominates pairing with extended-s symmetry. However, as the system size or the on-site Coulomb interaction increases, the long-range part of the d+id pairing correlation decreases and tends to vanish in the thermodynamic limit. An inclusion of nearest-neighbor interaction V, either repulsive or attractive, has a small effect on the extended-s pairing correlation, but strongly suppresses the d+id pairing correlation.

@misc{Ma2011, abstract = { To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in the t-U-V Hubbard model on a honeycomb lattice. For V=0 and close to half filling, we find that pairing with d+id symmetry dominates pairing with extended-s symmetry. However, as the system size or the on-site Coulomb interaction increases, the long-range part of the d+id pairing correlation decreases and tends to vanish in the thermodynamic limit. An inclusion of nearest-neighbor interaction V, either repulsive or attractive, has a small effect on the extended-s pairing correlation, but strongly suppresses the d+id pairing correlation. }, added-at = {2011-10-01T03:15:30.000+0200}, author = {Ma, Tianxing and Huang, Zhongbing and Hu, Feiming and Lin, Hai-Qing}, biburl = {https://www.bibsonomy.org/bibtex/2c80978edc79ed39f5d6054df43b9a62d/vakaryuk}, description = {Pairing in graphene: A quantum Monte Carlo study}, interhash = {0ac4b6a4143c4b170f2651b0aae01a73}, intrahash = {c80978edc79ed39f5d6054df43b9a62d}, keywords = {chiral}, note = {cite arxiv:1109.6458 Comment: 5 pages, 5 figures}, timestamp = {2011-10-01T03:15:30.000+0200}, title = {Pairing in graphene: A quantum Monte Carlo study}, url = {http://arxiv.org/abs/1109.6458}, year = 2011 }