Scalar Symmetries of the Hubbard Models with Variable Range Hopping
classification
✦ hep-th
cond-matnlin.SI
keywords
elliptichoppinghubbardrangescalarvariableconservedconstructed
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Examples of scalar conserved currents are presented for trigonometric, hyperbolic and elliptic versions of the Hubbard model with non-nearest neighbour variable range hopping. They support for the first time the hypothesis about the integrability of the elliptic version. The two- electron wave functions are constructed in an explicit form.
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