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arXiv 1208.2886math-phmath.MP
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具有自旋的超可积系统与二阶运动积分

Superintegrable systems with spin and second-order integrals of motion

Jean-Francois Desilets, Pavel Winternitz, Ismet Yurdusen

摘要:

研究了一个描述两个自旋分别为1/2和0的粒子相互作用的量子非相对论系统。我们假设的哈密顿量是旋转不变和奇偶守恒,并确定所有这样的系统,允许额外的运动积分是二阶矩阵多项式的动量。这些积分被假定为标量、伪标量、向量或轴向量。在所得到的超可积系统中,我们提到了库仑势的推广,它具有标量势$V_0=\fracα{r}+\frac{3\hbar^2}{8r^2}$和自旋轨道势$V_1=\frac{\hbar}{2r^2}$。

英文摘要:

We investigate a quantum nonrelativistic system describing the interaction of two particles with spin 1/2 and spin 0, respectively. We assume that the Hamiltonian is rotationally invariant and parity conserving and identify all such systems which allow additional integrals of motion that are second order matrix polynomials in the momenta. These integrals are assumed to be scalars, pseudoscalars, vectors or axial vectors. Among the superintegrable systems obtained, we mention a generalization of the Coulomb potential with scalar potential $V_0=\fracα{r}+\frac{3\hbar^2}{8r^2}$ and spin orbital one $V_1=\frac{\hbar}{2r^2}$.

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