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|Title:||Stability of quantum motion in regular systems: A uniform semiclassical approach||Authors:||Wang, W.-G.
|Issue Date:||2007||Citation:||Wang, W.-G., Casati, G., Li, B. (2007). Stability of quantum motion in regular systems: A uniform semiclassical approach. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 75 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevE.75.016201||Abstract:||We study the stability of quantum motion of classically regular systems in the presence of small perturbations. On the basis of a uniform semiclassical theory we derive the fidelity decay which displays a quite complex behavior, from Gaussian to power law decay t-α, with 1≤α≤2. Semiclassical estimates are given for the time scales separating the different decaying regions, and numerical results are presented which confirm our theoretical predictions. © 2007 The American Physical Society.||Source Title:||Physical Review E - Statistical, Nonlinear, and Soft Matter Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/98012||ISSN:||15393755||DOI:||10.1103/PhysRevE.75.016201|
|Appears in Collections:||Staff Publications|
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