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arXiv quant-ph/0410127quant-ph
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位置相关质量薛定谔方程精确解的系统研究

A systematic study on the exact solution of the position dependent mass Schroedinger equation

Ramazan Koc, Mehmet Koca

摘要:

本文提出了一种构造势函数的代数方法,使质量随位置变化的薛定谔方程能精确求解。利用su(1,1)代数生成元的一般形式,统一地解决了这一问题。我们的系统方法再现了一些早期的结果,也导致了一些新奇。我们证明了具有位置依赖质量的薛定谔方程的解不受位置依赖质量参数选择的影响。构造了两类势函数,几乎包含了所有精确可解的势函数。

英文摘要:

An algebraic method of constructing potentials for which the Schroedinger equation with position dependent mass can be solved exactly is presented. A general form of the generators of su(1,1) algebra has been employed with a unified approach to the problem. Our systematic approach reproduces a number of earlier results and also leads to some novelties. We show that the solutions of the Schroedinger equation with position dependent mass are free from the choice of parameters for position dependent mass. Two classes of potentials are constructed that include almost all exactly solvable potentials.

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