• Citer

Fourth-order factorization of the evolution operator for time-dependent potentials

par Baye, Daniel Jean ;Goldstein, Gérald ;Capel, Pierre
Référence Physics letters. A, 317, 5-6, page (337-342)
Publication Publié, 2003

Article révisé par les pairs

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

A unitary factorization of the evolution operator at order four is derived from the Magnus expansion with a time-dependent potential. Its efficiency is tested on various mesh treatments of a forced harmonic oscillator. With respect to second order, accuracies are improved by more than an order of magnitude. © 2003 Elsevier B.V. All rights reserved.