Two P‐stable methods with phase lag of order 10 and 12 are developed in this paper for the numerical integration of the one‐dimensional Schrödinger equation. Based on a new local error, thelocalphaselagerror (LPLE), a new variable‐step procedure is produced. Numerical results indicate that the new variable‐step method is more efficient than the similar well‐known variable‐step procedure of Raptis and Cash [Comput. Phys. Commun. 1985, 36, 113–119 (1985)].

This content is only available via PDF.
You do not currently have access to this content.