Unconventional Superconducting Symmetry in a Checkerboard Antiferromagnet

Huai-Xiang Huang, You-Quan Li, Jing-Yu Gan +2

We use a renormalized mean field theory to study the Gutzwiller projected BCS states of the extended Hubbard model in the large $U$ limit, or the $t$-$t^{\prime }$-$J$-$J^{\prime }$ model on a two-d…