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cond-mat.str-el2023
Gaussian variational method to Fermi Hubbard model in one and two dimensions
Yue-Ran Shi, Yuan-Yao He, Ruijin Liu +1
The study of ground-state properties of the Fermi-Hubbard model is a long-lasting task in the research of strongly correlated systems. Owing to the exponentially growing complexity…
cond-mat.quant-gas2023★ 18 cited
Quartet Superfluid in Two-dimensional Mass-imbalanced Fermi Mixtures
Ruijin Liu, Wei Wang, Xiaoling Cui
Quartet superfluid (QSF) is a distinct type of fermion superfluidity that exhibits high-order correlation beyond the conventional BCS pairing paradigm. In this Letter, we report th…