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
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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 et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 8228
- DOI 10.1002/pssb.200674601
- Persistent URL
- https://folia.unifr.ch/unifr/documents/300322
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