Agradecimentos: We acknowledge Paulo Nussenzveig, Richard Rand, and Steven Strogatz for fruitful discussion about our results. This work was supported in part by the National Science Foundation under Grant No. 0928552. The authors gratefully acknowledge the partial support from Cornell Center for Nanoscale Systems which is funded by the National Science Foundation and funding from IGERT (DEG-0654193). This work was performed in part at the Cornell NanoScale Science and Technology Facility (a member of the National Nanofabrication Users Network) which is supported by the National Science Foundation, its users, Cornell University, and Industrial users. G.S.W. acknowledges FAPESP and CNPq for financial support in Brazil Ver menos

Abstract: Synchronization, the emergence of spontaneous order in coupled systems, is of fundamental importance in both physical and biological systems. We demonstrate the synchronization of two dissimilar silicon nitride micromechanical oscillators, that are spaced apart by a few hundred nanometers and are coupled through an optical cavity radiation field. The tunability of the optical coupling between the oscillators enables one to externally control the dynamics and switch between coupled and individual oscillation states. These results pave a path toward reconfigurable synchronized oscillator networks Ver menos