Superconducting ground state of the two-dimensional Hubbard model: a variational study
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Eichenberger, David
Département de physique, Université de Fribourg, Switzerland
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Baeriswyl, Dionys
Département de physique, Université de Fribourg, Switzerland
Published in:
- Physica C: Superconductivity. - 2007, vol. 460-462, no. 2, p. 1153-1154
English
A trial wave function is proposed for studying the instability of the two-dimensional Hubbard model with respect to d-wave superconductivity. Double occupancy is reduced in a similar way as in previous variational studies, but in addition our wave function both enhances the delocalization of holes and induces a kinetic exchange between the electron spins. These refinements lead to a large... Show more…
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Faculty
- Faculté des sciences
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Department
- 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/300564