Nonlinear Dynamics and Quantum Entanglement in Optomechanical Systems

Guanglei Wang*, Liang Huang, Ying-Cheng Lai, Celso Grebogi

*Corresponding author for this work

Research output: Contribution to journalArticle

54 Citations (Scopus)


To search for and exploit quantum manifestations of classical nonlinear dynamics is one of the most fundamental problems in physics. Using optomechanical systems as a paradigm, we address this problem from the perspective of quantum entanglement. We uncover strong fingerprints in the quantum entanglement of two common types of classical nonlinear dynamical behaviors: periodic oscillations and quasiperiodic motion. There is a transition from the former to the latter as an experimentally adjustable parameter is changed through a critical value. Accompanying this process, except for a small region about the critical value, the degree of quantum entanglement shows a trend of continuous increase. The time evolution of the entanglement measure, e. g., logarithmic negativity, exhibits a strong dependence on the nature of classical nonlinear dynamics, constituting its signature.

Original languageEnglish
Article number110406
Number of pages6
JournalPhysical Review Letters
Issue number11
Publication statusPublished - 18 Mar 2014


  • cavity optomechanics
  • microwave fields
  • oscillator
  • motion
  • molecules
  • state
  • limit

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