• Vishnu M Bannur

      Articles written in Pramana – Journal of Physics

    • Nonlinear effects on Nielsen-Olesen instability

      Vishnu M Bannur

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      We have obtained an analytical solution of the nonlinear Nielsen-Olesen mode, which is known to be linearly unstable. We believe that our solution may be a nonlinear saturated state of the instability. It is different from the flux tube structure of chromomagnetic field as proposed by the Copenhagen group [1-3]. We have reanalysed their calculations, including a term, which they have neglected, and find it consistent with our result.

    • Formulation of statistical mechanics for chaotic systems

      Vishnu M Bannur Ramesh Babu Thayyullathil

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      We formulate the statistical mechanics of chaotic system with few degrees of freedom and investigated the quartic oscillator system using microcanonical and canonical ensembles. Results of statistical mechanics are numerically verified by considering the dynamical evolution of quartic oscillator system with two degrees of freedom.

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