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Transient synchronisation and quantum coherence in a bio-inspired vibronic dimer.

Stefan Siwiak-Jaszek1, Alexandra Olaya-Castro1

  • 1Department of Physics and Astronomy, University College London, London WC1E 6BT, UK. Stefan.siwiak-jaszek.11@ucl.ac.uk a.olaya@ucl.ac.uk.

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Quantum systems exhibit unique synchronization behaviors compared to classical ones. This study reveals that quantum coherence in bio-inspired systems promotes vibrational motion synchronization, offering insights into biomolecule dynamics.

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Area of Science:

  • Quantum Dynamics
  • Biophysics
  • Chemical Physics

Background:

  • Synchronization is a well-studied phenomenon in classical oscillators, but its quantum counterpart remains less understood.
  • Investigating synchronization in open quantum systems offers insights into distinguishing classical and quantum synchronization behaviors.
  • Bio-inspired systems, like vibronic dimers, provide a platform to explore quantum dynamics influenced by intramolecular vibrations.

Purpose of the Study:

  • To investigate transient synchronization dynamics in a bio-inspired vibronic dimer.
  • To understand the role of quantum coherence in mediating synchronization of vibrational motions.
  • To explore the relationship between coherent energy transport and synchronization in quantum systems.

Main Methods:

  • Theoretical study of a bio-inspired vibronic dimer model.
  • Analysis of electronic excitation dynamics influenced by intramolecular vibrational modes.
  • Examination of the time-evolution of vibronic quantum coherences and local mode displacements.

Main Results:

  • Synchronization dynamics of local mode displacements show complex behavior driven by distinct vibronic quantum coherences.
  • Coherent energy transport in the studied system is accompanied by the emergence of positive synchronization between mode displacements.
  • Quantum coherence plays a significant role in driving vibrational motions out of thermal equilibrium.

Conclusions:

  • This work deepens the understanding of the interplay between quantum coherence and synchronization in open quantum systems.
  • Quantum coherence can promote the synchronization of vibrational motions in bio-inspired systems.
  • Suggests a potential functional role for quantum coherence in biomolecular vibrational dynamics.