A polynomial approximation for the scattering wavefunction of an arbitrary spherically symmetric potential

• 来源期刊: 中国物理（英文版）
• 学科: 物理学
• 关键词: scattering phase shift variational approach
• 年，卷（期）: 2002,（2）
• 页码范围: 105-108
• 页数: 4页
• 分类号: O4
• 语种: 英文

摘要

A new variational approach is proposed to calculate scattering phase shifts. In this approach, the variationalparameter is contained not explicitly in the trial function but in the boundary conditions that the scattering wavefunctionshould satisfy. It was found that a high accuracy could be reached. Furthermore, the scattering wavefunction appearsas a polynomial of finite orders in the interior region. This expression is convenient for applications.