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arXiv 2103.07400math.QAmath-phmath.MP
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超 Macdonald 多项式:正交性与 Hilbert 空间解释

Super-Macdonald polynomials: Orthogonality and Hilbert space interpretation

Farrokh Atai, Martin Hallnäs, Edwin Langmann

AI总结:

本文为 Sergeev 和 Veselov 引入的超 Macdonald 多项式建立 Hermite 型与 Hilbert 空间解释,证明正交性并显式计算范数,进而提出相应变形 Macdonald-Ruijsenaars 模型可描述相对论量子场论中的粒子与反粒子。

摘要:

由 Sergeev 和 Veselov 引入的超 Macdonald 多项式将 Macdonald 多项式推广到(任意数量的)两类变量,并且它们是同一作者引入的变形 Macdonald-Ruijsenaars 算子的本征函数。我们引入一个由超 Macdonald 多项式张成的代数上的 Hermite 型,证明它们的正交性,显式计算它们的(二次)范数,并建立超 Macdonald 多项式与变形 Macdonald-Ruijsenaars 算子的相应 Hilbert 空间解释。这使得由变形 Macdonald-Ruijsenaars 算子定义的模型具有量子力学解释。受非相对论($q\ o 1$)情形下近期结果的启发,我们提出这些模型描述了一个底层相对论量子场论的粒子和反粒子,从而提供了三角 Ruijsenaars 模型的一个自然推广。

英文摘要:

The super-Macdonald polynomials, introduced by Sergeev and Veselov, generalise the Macdonald polynomials to (arbitrary numbers of) two kinds of variables, and they are eigenfunctions of the deformed Macdonald-Ruijsenaars operators introduced by the same authors. We introduce a Hermitian form on the algebra spanned by the super-Macdonald polynomials, prove their orthogonality, compute their (quadratic) norms explicitly, and establish a corresponding Hilbert space interpretation of the super-Macdonald polynomials and deformed Macdonald-Ruijsenaars operators. This allows for a quantum mechanical interpretation of the models defined by the deformed Macdonald-Ruijsenaars operators. Motivated by recent results in the nonrelativistic ($q\to 1$) case, we propose that these models describe the particles and anti-particles of an underlying relativistic quantum field theory, thus providing a natural generalisation of the trigonometric Ruijsenaars model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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