Controlled preparation and detection of d-wave superfluidity in two-dimensional optical superlatticesA. M. Rey, R. Sensarma, S. Fölling, M. Greiner, E. Demler and M. D. LukinEPL, 87 6 (2009) 60001DOI: https://doi.org/10.1209/0295-5075/87/60001