The interplay between d-wave superconductivity and antiferromagnetic fluctuations: a quantum Monte Carlo study

F. F. Assaad
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F. F. Assaad: Universität Stuttgart, Institut für Theoretische Physik III

A chapter in High Performance Computing in Science and Engineering ’98, 1999, pp 133-141 from Springer

Abstract: Abstract We consider the repulsive Hubbard model on a square lattice with an additional term, W, which depends upon the square of a single-particle nearest-neighbor hopping. At half-band filling, constant W, we show that enhancing U/t drives the system from a d-wave superconductor to an antiferromagnetic Mott insulator. At zero temperature in the superconducting phase, spin-spin correlations follow a powerlaw: e-ir. Q |r|-α. Here Q = (π,π) and α is in the range 1

Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-58600-2_15

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DOI: 10.1007/978-3-642-58600-2_15

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