• A Lakshminarayan

      Articles written in Pramana – Journal of Physics

    • Chaos and localization in coupled quartic oscillators

      M S Santhanam V B Sheorey A Lakshminarayan

      More Details Abstract Fulltext PDF

      We discuss some of the models for eigenfunction localization in Hamiltonian systems. In particular, we review some of our work on classical parametric scaling of orbits and identification of localized states in a two-dimensional quartic oscillator system which is deep in the classically chaotic region. We show that visual methods are a necessary complement to quantitative methods based on information entropies. Our preliminary results indicate that the periodic orbit stability determines the degree of localization in a class of states, even when the stable regions are of negligible measure.

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