Dual Fermion outperforms DMFT on thermodynamics, electronic structure and susceptibilities for the Falicov-Kimball model but is less accurate for orbital density versus chemical potential in the doped regime.
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DMRG on honeycomb cylinders and slave-boson mean-field theory find a robust t'-induced d-wave SC phase coexisting with armchair stripes for moderate t', transitioning to uniform nematic SC at large t' for doping 1/8.
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Benchmarking the Dual Fermion approach on the Falicov-Kimball model
Dual Fermion outperforms DMFT on thermodynamics, electronic structure and susceptibilities for the Falicov-Kimball model but is less accurate for orbital density versus chemical potential in the doped regime.
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Superconductivity and competing orders in honeycomb $t$-$J$ model: interplay of lattice geometry and next-nearest-neighbor hopping
DMRG on honeycomb cylinders and slave-boson mean-field theory find a robust t'-induced d-wave SC phase coexisting with armchair stripes for moderate t', transitioning to uniform nematic SC at large t' for doping 1/8.