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  1. 1 Acta Physica Polonica A

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  1. 1 1995

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  1. 1 Zhang Y.-Z.

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An Extended Supersymmetric t-J Model

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Zhang Y.-Z.
Acta Physica Polonica A
|
1995
|
vol. 88
|
issue 6
1119-1122
EN
A new lattice model is presented for correlated electrons on the un­restricted 4^{L}-dimensional electronic Hilbert space ⨁^{L}_{n=1}C^{4} (where L is the lattice length). It is an extension of the supersymmetric t-J model. The new model has gl(2|1) supersymmetry and contains one symmetry-preserving free real parameter α which has its origin in the one-parameter family of inequiv­alent typical 4-dimensional irreps of gl(2|1). When α = 0, the model reduces to the supersymmetric t-J model.
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