Effective particle-particle interaction in the two-dimensional Hubbard model.

@article{Bulut1993EffectivePI,
  title={Effective particle-particle interaction in the two-dimensional Hubbard model.},
  author={Bulut and Scalapino and White},
  journal={Physical review. B, Condensed matter},
  year={1993},
  volume={47 10},
  pages={
          6157-6160
        }
}
The irreducible particle-particle interaction Γ 1 of the two-dimensional Hubbard model is calculated by quantum Monte Carlo simulations. The Bethe-Salpeter equation for the pair-wave function is then solved using the Monte Carlo data for Γ 1 and the single-particle Green's function. The dominant pairing correlations in the intermediate-coupling regime and at small dopings are discussed 

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