Stability of quantum motion in regular systems: A uniform semiclassical approach (Articolo in rivista)

Type
Label
  • Stability of quantum motion in regular systems: A uniform semiclassical approach (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Wang, WG; Casati, G; Li, BW (2007)
    Stability of quantum motion in regular systems: A uniform semiclassical approach
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Wang, WG; Casati, G; Li, BW (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 75 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore; Natl Univ Singapore, Ctr Computat Sci & Engn, Singapore 117542, Singapore; SE Univ, Dept Phys, Nanjing 210096, Peoples R China; Univ Insubria, Ctr Nonlinear & Complex Syst, I-22100 Como, Italy; CNR, INFM, I-00185 Rome, Italy; Ist Nazl Fis Nucl, Sez Milano, Milan, Italy; Nanjing Univ, Lab Modern Acoust, Nanjing 210093, Peoples R China; Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China; Natl Univ Singapore, Grad Sch Integrat Sci & Engn, Singapore 117597, Singapore (literal)
Titolo
  • Stability of quantum motion in regular systems: A uniform semiclassical approach (literal)
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(-alpha), with 1 <=alpha <= 2. Semiclassical estimates are given for the time scales separating the different decaying regions, and numerical results are presented which confirm our theoretical predictions. (literal)
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