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arXiv quant-ph/9812058quant-phmath-phmath.MP
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量子力学中能量轨线的构造性反演

Constructive inversion of energy trajectories in quantum mechanics

Richard L. Hall

摘要:

我们假设一维薛定谔哈密顿量H = -Δ+ vf(x)的基态本征值E = F(v)对于所有耦合v > 0的值都是已知的。假设势形f(x)是对称的,有界的,并且x > 0时单调递增。设计了一种快速算法,该算法允许从能量轨迹F(v)重建潜在形状f(x)。三个例子进行了详细讨论:一个移位的功率势,指数势,和sech平方势每个重建从他们已知的确切的能量轨迹。

英文摘要:

We suppose that the ground-state eigenvalue E = F(v) of the Schroedinger Hamiltonian H = -Δ+ vf(x) in one dimension is known for all values of the coupling v > 0. The potential shape f(x) is assumed to be symmetric, bounded below, and monotone increasing for x > 0. A fast algorithm is devised which allows the potential shape f(x) to be reconstructed from the energy trajectory F(v). Three examples are discussed in detail: a shifted power-potential, the exponential potential, and the sech-squared potential are each reconstructed from their known exact energy trajectories.

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