Pulse-driven quantum dynamics beyond the impulsive regime -: art. no. 033411

被引：11
|
作者：
Daems, D
Guérin, S
Jauslin, HR
Keller, A
Atabek, O
机构：
[1] Free Univ Brussels, Ctr Nonlinear Phenomena & Complex Syst, B-1050 Brussels, Belgium
[2] Univ Bourgogne, Phys Lab, CNRS, UMR 5027, F-21078 Dijon, France
[3] Univ Paris 11, CNRS, Photophys Mol Lab, F-91405 Orsay, France
来源：
PHYSICAL REVIEW A | 2004年 / 69卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.69.033411
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We review various unitary time-dependent perturbation theories and compare them formally and numerically. We show that the Kolmogorov-Arnold-Moser technique performs better owing to both the superexponential character of correction terms and the possibility to optimize the accuracy of a given level of approximation which is explored in detail here. As an illustration, we consider a two-level system driven by short pulses beyond the sudden limit.
引用
收藏
页码：033411 / 1
页数：15
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