Pairing in graphene: A quantum Monte Carlo study
Pairing in graphene: A quantum Monte Carlo study
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 $t\ensuremath{-}U\ensuremath{-}V$ Hubbard model on a honeycomb lattice. For $V=0$ and close to half filling, we find that pairing with $d+id$ (${d}_{{x}^{2}\ensuremath{-}{y}^{2}}+i{d}_{xy}^{\ensuremath{'}}$ in its specific form) …