Journal article

Superconductivity in the two-dimensional Hubbard model ?

    12.04.2007
Published in:
  • Physica Status Solidi b. - 2007, vol. 244, no. 7, p. 2299 - 2303
English A refined variational wave function for the two-dimensional repulsive Hubbard model is studied numerically, with the aim of approaching the difficult crossover regime of intermediate values of U. The issue of a superconducting ground state with d-wave symmetry is investigated for an average electron density n≈ 0.8 and for U = 8t. Due to finite-size effects a clear-cut answer to this fundamental question has not yet been reached.
Faculty
Faculté des sciences
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300322
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