Nonlinear dynamics and quantum entanglement in optomechanical systems

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

Research output: Contribution to journalArticlepeer-review

86 Scopus citations


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 (US)
Article number110406
JournalPhysical Review Letters
Issue number11
StatePublished - Mar 18 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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