Fractional revivals of coherence in quantum mechanical oscillators

Authors
Publication date 2000
Journal Physica A : Statistical Mechanics and its Applications
Volume | Issue number 287
Pages (from-to) 217-258
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for Theoretical Physics Amsterdam (ITFA)
Abstract A case study is made of the delocalisation and revival dynamics of a continuously driven quantum pendulum in integrable and near integrable regimes, utilising the Husimi phase-space distribution function, and an entropy function which measures the degree of localisation. The numerical results can be well understood in terms of a simple model description based on a quasi-energy representation. Two important time-scales of the evolution are derived, and the model description appears to remain highly accurate in the region of classical KAM-tori, even in the driven case.
Document type Article
Published at https://doi.org/10.1016/S0378-4371(00)00222-3
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