Exact demonstration of off-diagonal long-range order in the ground state of a Hubbard model
- 20 December 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (25) , 4238-4240
- https://doi.org/10.1103/physrevlett.71.4238
Abstract
We present a rigorous proof that the ground state of a negative-U Hubbard model on some bipartite lattices Λ possesses off-diagonal long-range order in a finite range of the electron filling factor .
Keywords
This publication has 22 references indexed in Scilit:
- Electronic model for superconductivityPhysical Review Letters, 1993
- New exactly solvable model of strongly correlated electrons motivated by high-superconductivityPhysical Review Letters, 1992
- SO4 SYMMETRY IN A HUBBARD MODELInternational Journal of Modern Physics B, 1991
- SO4 SYMMETRY IN A HUBBARD MODELModern Physics Letters B, 1990
- ηpairing and off-diagonal long-range order in a Hubbard modelPhysical Review Letters, 1989
- Electron correlations in narrow energy bands III. An improved solutionProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1964
- Electron correlations in narrow energy bandsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1963
- Concept of Off-Diagonal Long-Range Order and the Quantum Phases of Liquid He and of SuperconductorsReviews of Modern Physics, 1962
- Theory of SuperconductivityPhysical Review B, 1957
- Bound Electron Pairs in a Degenerate Fermi GasPhysical Review B, 1956