INVESTIGADORES
LAMBERTI Pedro Walter
artículos
Título:
A note on Magnus formula
Autor/es:
DOMINGO PRATO; P.W. LAMBERTI
Revista:
JOURNAL OF CHEMICAL PHYSICS
Editorial:
AMER INST PHYSICS
Referencias:
Lugar: American Institute of Physics; Año: 1997 vol. 106 p. 4640 - 4643
ISSN:
0021-9606
Resumen:
In this paper we reanalyze the Magnus formula for the time evolution operator in quantum mechanics from an algorithmic point of view. We give some rules to obtain the general term in the expansion as a compact time-ordered integral. These rules are easily applied to higher orders; in particular, we give explicitly the fifth order.
