| Issue |
Europhys. Lett.
Volume 39, Number 4, August II 1997
|
|
|---|---|---|
| Page(s) | 441 - 446 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00374-9 | |
| Published online | 01 September 2002 | |
Exactly solvable one-dimensional model of strongly correlated fermions with pair hopping
Institut für Theoretische Physik,
Universität zu Köln, Zülpicher Str. 77,
D-50937 Köln, Germany
Received:
15
April
1997
Accepted:
15
July
1997
A new one-dimensional model of strongly correlated fermions on N
sublattices with density-density interaction and pair hopping between
sublattices is formulated and solved exactly by the Bethe ansatz
method. The density-density and pair correlation functions are
calculated which manifest superconducting properties for 
.
PACS: 75.10.Lp – Band and itinerant models / 74.20.-z – Theories and models of superconducting state / 71.28.+d – Narrow-band systems; intermediate-valence solids
© EDP Sciences, 1997
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