On the structure and convergence of the symmetric Zassenhaus formula
Metadatos
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https://doi.org/10.1016/j.cpc.2017.04.004 |
Metadatos
Título
On the structure and convergence of the symmetric Zassenhaus formulaFecha de publicación
2017-08Editor
ElsevierISSN
0010-4655Cita bibliográfica
ARNAL, Ana; CASAS, Fernando; CHIRALT, Cristina. On the structure and convergence of the symmetric Zassenhaus formula. Computer Physics Communications, 2017, vol. 217, p. 58-65.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0010465517301182Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
We propose and analyze a symmetric version of the Zassenhaus formula for disentangling the exponential of two non-commuting operators. A recursive procedure for generating the expansion up to any order is presented ... [+]
We propose and analyze a symmetric version of the Zassenhaus formula for disentangling the exponential of two non-commuting operators. A recursive procedure for generating the expansion up to any order is presented which also allows one to get an enlarged domain of convergence when it is formulated for matrices. It is shown that the approximations obtained by truncating the infinite expansion considerably improve those arising from the standard Zassenhaus formula. [-]
Publicado en
Computer Physics Communications, 2017, vol. 217, p. 58-65Proyecto de investigación
Universitat Jaume I / P1.1B20115-16; Ministerio de Economia y Competitividad (Spain) / MTM201677660-PDerechos de acceso
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