经典轨道的封闭性和径向Schr?dinger方程的因式分解 |
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引用本文: | 武作兵,曾谨言. 经典轨道的封闭性和径向Schr?dinger方程的因式分解[J]. 原子核物理评论, 2000, 17(1) |
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作者姓名: | 武作兵 曾谨言 |
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作者单位: | 1. 北京大学物理系,北京 100871;中国科学院力学研究所非线性力学国家重点实验室,北京 100080 2. 北京大学物理系,北京 100871 |
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基金项目: | 国家自然科学基金,国家非性科学计划,高等学校博士学科点专项科研项目 |
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摘 要: | 研究表明,保证经典轨道具有封闭性的Bertrand定理可以进一步推广,在适当的角动量下,仍存在着非椭圆的闭合轨道.对于屏蔽Coulomb场,可获得广义Runge-Lenz矢量.这种轨道封闭性与径向Schr?dinger方程因式分解相对应.
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关 键 词: | Bertrand定理 闭合轨道 升降算子 Bertrand′s theorem |
Closeness of Classical Orbits and Factorization of Radial Schrodinger Equation |
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Abstract: | It is shown that for a particle with suitable angular momenta in the screened Coulomb poten-tial or isotropic harmonic potential, there still exists closed orbits rather than ellipse, characterized by theconserved perihelion and aphelion vectors, i.e. , extended Runge-Lenz vector, Which implies a higher dy-namical symmetry than the geometrical symmetry SO3. For the potential, factorization of the radialSchrodinger equation to produce raising and lowering operators is also pointed out. |
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Keywords: | closed orbits creation and annihilation operator |
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