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The Doped Two Chain Hubbard Model

R. M. Noack·S. R. White·D. J. Scalapino
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Abstract

The properties of the two-chain Hubbard Model doped away from half-filling are investigated. The charge gap is found to vanish, but a finite spin gap exists over a range of interchain hopping strength $t_\perp$. In this range, there are modified $d_{x^2-y^2}$--like pairing correlations whose strength is correlated with the size of the spin gap. It is found that the pair field correlations are enhanced by the onsite Coulomb interaction U.

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R. M. Noack, S. R. White, D. J. Scalapino. 1994-09-15. The Doped Two Chain Hubbard Model. https://doi.org/10.1209/0295-5075%2F30%2F3%2F007

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