Two-dimensional Hubbard model with nearest- and next-nearest-neighbor hopping

作者: H. Q. Lin , J. E. Hirsch

DOI: 10.1103/PHYSREVB.35.3359

关键词: Quantum mechanicsCondensed matter physicsHubbard modelk-nearest neighbors algorithmPhysics

摘要: … In the case of nearestneighbor hopping only, and for the half-filled band … next-nearest-neighbor hopping. Since in the tight-binding … features arise when we turn on next-nearest-neighbor …

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