Journal article

Superconductivity in the two-dimensional Hubbard model ?

  • Baeriswyl, Dionys Department of Physics, University of Fribourg, Switzerland
  • Eichenberger, David Department of Physics, University of Fribourg, Switzerland
  • Gut, Bruno Department of Physics, University of Fribourg, Switzerland
    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 <i>U</i>. The issue of a superconducting ground state with d-wave symmetry is investigated for an average electron density <i>n</i>≈ 0.8 and for <i>U</i> = 8<i>t</i>. Due to finite-size effects a... Show more…
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