title: Photonic cavity synchronization of nanomechanical oscillators.
abstract: Synchronization in oscillatory systems is a frequent natural phenomenon and is becoming an important concept in modern physics. Nanomechanical resonators are ideal systems for studying synchronization due to their controllable oscillation properties and engineerable nonlinearities. Here we demonstrate synchronization of two nanomechanical oscillators via a photonic resonator, enabling optomechanical synchronization between mechanically isolated nanomechanical resonators. Optical backaction gives rise to both reactive and dissipative coupling of the mechanical resonators, leading to coherent oscillation and mutual locking of resonators with dynamics beyond the widely accepted phase oscillator (Kuramoto) model. In addition to the phase difference between the oscillators, also their amplitudes are coupled, resulting in the emergence of sidebands around the synchronized carrier signal.
authors: Department of Electrical Engineering, Yale University, New Haven, Connecticut 06511, USA.
authors: Mahmood
authors: M
authors: Bagheri
authors: Menno
authors: M
authors: Poot
authors: Linran
authors: L
authors: Fan
authors: Florian
authors: F
authors: Marquardt
authors: Hong X
authors: HX
authors: Tang