Phase synchronization of two anharmonic nanomechanical oscillators

Phys Rev Lett. 2014 Jan 10;112(1):014101. doi: 10.1103/PhysRevLett.112.014101. Epub 2014 Jan 6.


We investigate the synchronization of oscillators based on anharmonic nanoelectromechanical resonators. Our experimental implementation allows unprecedented observation and control of parameters governing the dynamics of synchronization. We find close quantitative agreement between experimental data and theory describing reactively coupled Duffing resonators with fully saturated feedback gain. In the synchronized state we demonstrate a significant reduction in the phase noise of the oscillators, which is key for sensor and clock applications. Our work establishes that oscillator networks constructed from nanomechanical resonators form an ideal laboratory to study synchronization--given their high-quality factors, small footprint, and ease of cointegration with modern electronic signal processing technologies.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Micro-Electrical-Mechanical Systems / instrumentation
  • Micro-Electrical-Mechanical Systems / methods*
  • Models, Theoretical*
  • Nanotechnology / instrumentation
  • Nanotechnology / methods*