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  • The multi-faceted inverted harmonic oscillator: Chaos and complexity 
    Bhattacharyya, Arpan; Chemissany, Wissam; Haque, S. Shajidul; Murugan, Jeff; Yan, Bin (SciPost, 2021-02)
    The harmonic oscillator is the paragon of physical models; conceptually and computationally simple, yet rich enough to teach us about physics on scales that span classical mechanics to quantum field theory. This multifaceted ...
  • Towards the web of quantum chaos diagnostics 
    Bhattacharyya, Arpan; Chemissany, Wissam; Haque, S. Shajidul; Yan, Bin (SpringerOpen, 2022-01)
    We study the connections between three quantities that can be used as diagnostics for quantum chaos, i.e., the out-of-time-order correlator (OTOC), Loschmidt echo (LE), and complexity. We generalize the connection between ...

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