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https://doi.org/10.1103/PhysRevE.75.016201
Title: | Stability of quantum motion in regular systems: A uniform semiclassical approach | Authors: | Wang, W.-G. Casati, G. Li, B. |
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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