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arXiv 2108.00499math-phmath.MPnlin.SI
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超八面体对称离散椭圆可积粒子模型的本征函数

Eigenfunctions of a discrete elliptic integrable particle model with hyperoctahedral symmetry

Jan Felipe van Diejen, Tamás Görbe

摘要:

我们构造了具有超八面体对称性的离散椭圆形Ruijsenaars型量子粒子Hamilton量的正交本征基。在三角极限的本征函数的问题恢复以前研究的$q$-拉卡型减少Koornwinder-Macdonald多项式。当粒子间的相互作用退化到不可穿透的玻色子时,正交本征基简化了与最近发现的椭圆Racah多项式相关的谱上的广义Schur多项式。

英文摘要:

We construct the orthogonal eigenbasis for a discrete elliptic Ruijsenaars type quantum particle Hamiltonian with hyperoctahedral symmetry. In the trigonometric limit the eigenfunctions in question recover a previously studied $q$-Racah type reduction of the Koornwinder-Macdonald polynomials. When the inter-particle interaction degenerates to that of impenetrable bosons, the orthogonal eigenbasis simplifies in terms of generalized Schur polynomials on the spectrum associated with recently found elliptic Racah polynomials.

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