On time-dependent perturbation theory in matrix mechanics and time averaging
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7037
comunitat-uji-handle3:10234/8635
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Título
On time-dependent perturbation theory in matrix mechanics and time averagingAutoría
Fecha de publicación
2015Editor
European Physical SocietyISSN
0143-0807; 1361-6404Cita bibliográfica
CASAS, Fernando. On time-dependent perturbation theory in matrix mechanics and time averaging. European Journal of Physics, 2015, vol. 36, no 5, p. 055049.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://iopscience.iop.org/article/10.1088/0143-0807/36/5/055049Versión
info:eu-repo/semantics/publishedVersionResumen
The time-dependent quantum perturbation theory developed by Born, Heisenberg and Jordan in 1926 is revisited. We show that it not only reproduces the standard theory formulated in the interaction picture, but also ... [+]
The time-dependent quantum perturbation theory developed by Born, Heisenberg and Jordan in 1926 is revisited. We show that it not only reproduces the standard theory formulated in the interaction picture, but also allows one to construct more accurate approximations if time averaging techniques are employed. The theory can be rendered unitary even if the expansion is truncated by using a transformation previously suggested by Heisenberg. We illustrate the main features of the procedure on a simple example which clearly shows its advantages in comparison with the standard perturbation theory. [-]
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European Journal of Physics, 2015, vol. 36, no 5, p. 055049.Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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- MAT_Articles [749]