Superconductivity in the two-dimensional Hubbard model ?
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Baeriswyl, Dionys
Department of Physics, University of Fribourg, Switzerland
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Eichenberger, David
Department of Physics, University of Fribourg, Switzerland
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Gut, Bruno
Department of Physics, University of Fribourg, Switzerland
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…
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Faculty
- Faculté des sciences
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/300322