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arXiv 0710.0843math-phmath.MPnlin.SI
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N维弯曲空间上的超可积非谐振子

Superintegrable anharmonic oscillators on N-dimensional curved spaces

Angel Ballesteros, Alberto Encisco, Francisco J. Herranz, Orlando Ragnisco

摘要:

从sl(2)-Poisson余代数对称性的角度重新讨论了N维常曲率空间中内禀谐振子势的极大超可积性。它示出了如何这种代数方法导致一个简单的定义一个新的大家庭的准极大超可积扰动的内在振荡器在这样的空间。此外,还将这种构造推广到了具有sl(2)-余代数对称性的非常曲率的N维空间.作为后一类系统的第一个例子,我们构造了N维Darboux空间上的振子势及其拟极大超可积非调和扰动族.

英文摘要:

The maximal superintegrability of the intrinsic harmonic oscillator potential on N-dimensional spaces with constant curvature is revisited from the point of view of sl(2)-Poisson coalgebra symmetry. It is shown how this algebraic approach leads to a straightforward definition of a new large family of quasi-maximally superintegrable perturbations of the intrinsic oscillator on such spaces. Moreover, the generalization of this construction to those N-dimensional spaces with non-constant curvature that are endowed with sl(2)-coalgebra symmetry is presented. As the first examples of the latter class of systems, both the oscillator potential on an N-dimensional Darboux space as well as several families of its quasi-maximally superintegrable anharmonic perturbations are explicitly constructed.

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