Phys. Rev. Lett. 84, 2052–2055 (2000)Wave Packet Dynamics in Energy Space, Random Matrix Theory, and the Quantum-Classical CorrespondenceReceived 7 September 1999; published in the issue dated 6 March 2000 We apply random-matrix-theory (RMT) to the analysis of evolution of wave packets in energy space. We study the crossover from ballistic behavior to saturation, the possibility of having an intermediate diffusive behavior, and the feasibility of strong localization effect. Both theoretical considerations and numerical results are presented. Using quantal-classical correspondence considerations we question the validity of the emerging dynamical picture. In particular, we claim that the appearance of the intermediate diffusive behavior is possibly an artifact of the RMT strategy. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.2052
DOI:
10.1103/PhysRevLett.84.2052
PACS:
03.65.Sq, 05.45.Mt
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