arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math-ph/0505081math-phmath.MPmath.QAnlin.SI
收藏

曲率空间上的可积位势与量子群

Integrable potentials on spaces with curvature from quantum groups

Angel Ballesteros, Francisco J. Herranz, Orlando Ragnisco

摘要:

通过定义在sl(2)Poisson余代数的非标准量子变形上的Hamilton算子,构造了一类定义在二维球面、双曲和(反)de Sitter空间变形上的经典可积系统.所有这些空间都具有取决于变形参数z的非恒定曲率。作为特例,提出了谐振子和Kepler-Coulomb势在这种空间上的类似物。另一个变形的哈密顿量也被证明提供超可积系统通常的球,双曲和(反)德西特空间与常曲率,正好符合z。根据每个特定的空间,所得到的势被解释为中心谐振子与两个以上的振子或离心屏障的叠加。所有这些哈密顿量的非变形极限z=0可以被认为是零曲率极限(收缩),它导致平坦欧氏空间和闵可夫斯基空间上相应的(超)可积系统。

英文摘要:

A family of classical integrable systems defined on a deformation of the two-dimensional sphere, hyperbolic and (anti-)de Sitter spaces is constructed through Hamiltonians defined on the non-standard quantum deformation of a sl(2) Poisson coalgebra. All these spaces have a non-constant curvature that depends on the deformation parameter z. As particular cases, the analogues of the harmonic oscillator and Kepler--Coulomb potentials on such spaces are proposed. Another deformed Hamiltonian is also shown to provide superintegrable systems on the usual sphere, hyperbolic and (anti-)de Sitter spaces with a constant curvature that exactly coincides with z. According to each specific space, the resulting potential is interpreted as the superposition of a central harmonic oscillator with either two more oscillators or centrifugal barriers. The non-deformed limit z=0 of all these Hamiltonians can then be regarded as the zero-curvature limit (contraction) which leads to the corresponding (super)integrable systems on the flat Euclidean and Minkowskian spaces.

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。

↑