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arXiv math-ph/0406002math-phhep-thmath.MPnlin.SI
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一类具有准谐振行为的非线性振子:二维和$n$维振子

A non-linear Oscillator with quasi-Harmonic behaviour: two- and $n$-dimensional Oscillators

José F. Cariñena, Manuel F. Rañada, Mariano Santander, Murugaian Senthilvelan

摘要:

利用拉格朗日形式和哈密顿形式研究了二维非线性系统。本模型是作为一个二维版本的一维振荡器先前研究的经典和量子水平。首先证明它是一个超可积系统,然后解出非线性方程组并显式地得到解。所有的有界运动都是准周期振荡,无界(散射)运动用双曲函数表示。在第二部分中,系统被推广到$n$自由度的情况。最后讨论了常曲率空间、二维球面$S^2$和双曲平面$H^2$上的谐振子与该非线性系统的关系。

英文摘要:

A nonlinear two-dimensional system is studied by making use of both the Lagrangian and the Hamiltonian formalisms. The present model is obtained as a two-dimensional version of a one-dimensional oscillator previously studied at the classical and also at the quantum level. First, it is proved that it is a super-integrable system, and then the nonlinear equations are solved and the solutions are explicitly obtained. All the bounded motions are quasiperiodic oscillations and the unbounded (scattering) motions are represented by hyperbolic functions. In the second part the system is generalized to the case of $n$ degrees of freedom. Finally, the relation of this nonlinear system with the harmonic oscillator on spaces of constant curvature, two-dimensional sphere $S^2$ and hyperbolic plane $H^2$, is discussed.

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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