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cond-mat.quant-gas2018★ 14 cited
Spin-Imbalanced Fermi Superfluidity in a Lieb Lattice Hubbard Model
Marek Tylutki, Päivi Törmä
We obtain a phase diagram of the spin imbalanced Hubbard model on the Lieb lattice, which is known to feature a flat band in its single-particle spectrum. Using the BCS mean-field…
cond-mat.quant-gas2018★ 17 cited
Spin-Imbalanced Pairing and Fermi Surface Deformation in Flat Bands
Kukka-Emilia Huhtinen, Marek Tylutki, Pramod Kumar +3
We study the attractive Hubbard model with spin imbalance on two lattices featuring a flat band: the Lieb and kagome lattices. We present mean-field phase diagrams featuring exotic…