Density functional theory versus quantum Monte Carlo simulations of Fermi gases in the optical-lattice arenaSebastiano Pilati, Ilia Zintchenko, Matthias Troyer and Francesco AncilottoEur. Phys. J. B, 91 4 (2018) 70DOI: https://doi.org/10.1140/epjb/e2018-90021-1