• Influence of quadrupole–quadrupole-type interaction on the chaotic dynamics of $\alpha$-helical proteins

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      https://www.ias.ac.in/article/fulltext/pram/091/03/0040

    • Keywords

       

      $\alpha$-Helical proteins; chaos; Lyapunov exponents

    • Abstract

       

      By proposing a model Hamiltonian in the first quantised form we investigate the chaotic dynamics of $\alpha$-helical proteins by taking into account the quadrupole–quadrupole-type interaction. The dynamics is studied byderiving Hamilton’s equations of motion and by plotting the time-series evolution and phase-space trajectories. Chaotic trajectories are observed in the phase-space plots. The effect of the interaction parameters on the stabilityof proteins is also discussed.

    • Author Affiliations

       

      K ANGELIN JEBA1 M M LATHA1 SUDHIR R JAIN2

      1. Department of Physics, Women’s Christian College, Nagercoil 629 001, India
      2. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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