𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Bessel and Neumann fitted methods for the numerical solution of the Schrödinger equation

✍ Scribed by T.E. Simos


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
682 KB
Volume
42
Category
Article
ISSN
0898-1221

No coin nor oath required. For personal study only.

✦ Synopsis


The Bessel and Neumann fitted methods for the numerical solution of the Schr'ddinger equation is the subject of this paper. An eighth-algebraic-order method for the numerical solution of the SchrSdinger equation is developed in this paper. The new method has free parameters which are defined such that the method is fitted to spherical Bessel and Neumann functions. A variablestep procedure is obtained based on the newly developed method and the method of Simos . The results produced based on the numerical solution of the radial SchrSdinger equation and of coupled differential equations arising from the SchrSdinger equation indicate that this new approach is more efficient than other well-known methods. (~) 2001 Elsevier Science Ltd. All rights reserved.


📜 SIMILAR VOLUMES


Exponential fitted methods for the numer
✍ T.E. Simos 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 500 KB

A new sixth-order Runge-Kutta type method is developed for the numerical integration of the one-dimensional Schrodinger equation. The formula developed contains certain free parameters which allows it to be fitted automatically to exponential functions. We give a comparative error analysis with othe

An exponentially fitted eighth-order met
✍ T.E. Simos 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 133 KB

An eighth algebraic order exponentially ÿtted method is developed for the numerical integration of the Schr odinger equation. The formula considered contains certain free parameters which allow it to be ÿtted automatically to exponential functions. An comparative error analysis is also given. Numeri

A Fortran program for the numerical inte
✍ J.R. Cash; A.D. Raptis; T.E. Simos 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 880 KB

This algorithm uses a high-order, variable step Runge-Kutta like method in the region where the potential term dominates, and an exponential or Bessel fitted method in the asymptotic region. This approach can be used to compute scattering phase shifts in an efficient and reliable manner. A Fortran p