International Journal of Theoretical Physics

, Volume 53, Issue 6, pp 1961–1970 | Cite as

Information Entropy to Probe Revivals in Dynamical Systems

  • Tasawar Abbas
  • Farhan Saif


It is shown that sum of information entropies in position and momentum space, quantifies the temporal information in wave packet dynamics of a dynamical system. Quantum fractional revivals are investigated on these bases in periodically driven Fermi-Ulam accelerator. It is observed that the entropic measure provides deeper insight of the wave packet dynamics for the long time evolution as compared with conventional autocorrelation function. It is shown that these revival times are not symmetric in driven situations and may lead to a random behavior.


Coherent structure Time-dependent phenomena Quantum recurrences Fermi-Ulam accelerator Entropy 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of PhysicsCOMSATS Institute of Information TechnologyIslamabadPakistan
  2. 2.Department of ElectronicsQuaid-i-Azam UniversityIslamabadPakistan

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