与X_2-Laguerre多项式相关的N重超对称性和拟可解性
N-fold Supersymmetry and Quasi-solvability Associated with X_2-Laguerre Polynomials
摘要：
我们构造了一类新的拟可解N重超对称量子系统，其中每个哈密顿量都保持一个余维为2的例外多项式子空间。我们证明了这个族包括最近报道的有理径向振子势作为一个特例，其本征函数用第二类X_2-Laguerre多项式表示。此外，我们还发现这两类X_2-Laguerre多项式通过N重超荷巧妙地联系在一起。
英文摘要：
We construct a new family of quasi-solvable and N-fold supersymmetric quantum systems where each Hamiltonian preserves an exceptional polynomial subspace of codimension 2. We show that the family includes as a particular case the recently reported rational radial oscillator potential whose eigenfunctions are expressed in terms of the X_2-Laguerre polynomials of the second kind. In addition, we find that the two kinds of the X_2-Laguerre polynomials are ingeniously connected with each other by the N-fold supercharge.
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