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cond-mat.supr-con2015★ 24 cited
Fulde-Ferrell-Larkin-Ovchinnikov pairing as leading instability on the square lattice
Jan Gukelberger, Sebastian Lienert, Evgeny Kozik +2
We study attractively interacting spin-1/2 fermions on the square lattice subject to a spin population imbalance. Using unbiased diagrammatic Monte Carlo simulations we find an ext…
cond-mat.str-el2015★ 78 cited
On the dangers of partial diagrammatic summations: Benchmarks for the two-dimensional Hubbard model in the weak-coupling regime
Jan Gukelberger, Li Huang, Philipp Werner
We study the two-dimensional Hubbard model in the weak-coupling regime and compare the self-energy obtained from various approximate diagrammatic schemes to the result of diagramma…