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Ann. Phys. 42008 Rigorous solution of a Hubbard model extended by nearest-neighbour Coulomb and exchange interaction on a triangle and tetrahedron

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Ann. Phys. (Berlin) 17, No. 2–3, 64 (2008) / DOI 10.1002/andp.200817003
Recent and forthcoming publication in Annalen der Physik
: Ann. Phys. (Berlin)
17, No. 4, April (2008)
DOI: 10.1002/
andp.200710281
Rigorous solution of a Hubbard model extended
by nearest-neighbour Coulomb and exchange interaction
on a triangle and tetrahedron
Rolf Schumann
The Hubbard model extended by both
nearest-neighbour (nn) Coulomb
correlation and nearest-neighbour
Heisenberg exchange is solved rigorously for a triangle and tetrahedron.
All eigenvalues and eigenvectors
are given as functions of the model
parameters in a closed analytical form.
J
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exchanger, mode, coulomb, triangle, phys, nearest, extended, neighbour, tetrahedral, 42008, solutions, hubbard, rigorous, interactiv, ann
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