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Algebra of orthofermions and equivalence of their thermodynamics to the infinite U Hubbard model

机译:正交正铁的代数及其热力学的等价于无限U Hubbard模型

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The equivalence of thermodynamics of independent orthofermions to the infinite U Hubbard model, shown earlier for the one-dimensional infinite lattice, has been extended to a finite system of two lattice sites. Regarding the algebra of orthofermions, the algebraic expressions for the number operator for a given spin and the spin raising (lowering) operators in the form of infinite series are rearranged in such a way that the ith term, having the form of an infinite series, of the number (spin raising (lowering)) operator represents the number (spin raising (lowering)) operator at the ith lattice site. (c) 2006 Elsevier B.V. All rights reserved.
机译:对于一维无限晶格,独立正交铁素体的热力学等价于无限U Hubbard模型的等价性已扩展到两个晶格位置的有限系统。关于正交子方程的代数,给定自旋的数字运算符和无穷级数形式的自旋上升(降低)运算符的代数表达式以如下方式重新排列:第i个项具有无穷级数形式, (旋转上升(降低))算子的“ |”表示第i个晶格位置处的数字(旋转上升(降低))算子。 (c)2006 Elsevier B.V.保留所有权利。

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