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Numerical simulation of the single-band Hubbard model

DOI to cite this document:
Morgenstern, Ingo
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Date of publication of this fulltext: 23 Aug 2010 11:53


Monte Carlo simulations based on the Trotter-Suzuki transformation were carried out using 6×6 and 12×12 lattices and the single-band Hubbard model with intermediaterange repulsive interaction. The absence of the ldquominus-sign problemrdquo for sufficiently low temperatures and appropriate doping indicates bosonic behavior reminiscent of superconductivity. It was found that holes prefer to pair on next-nearest-neighbor sites while nearest neighbors are suppressed.

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