Resonantly Induced Friction and Frequency Combs in Driven Nanomechanical Systems

Anno: 2019

Autori: Dykman M.I., Rastelli G., Roukes M.L., Weig E.M.

Affiliazione autori: Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany. CALTECH, Dept Phys, Pasadena, CA 91125 USA.

Abstract: We propose a new mechanism of friction in resonantly driven vibrational systems. The form of the friction force follows from the time- and spatial-symmetry arguments. We consider a microscopic mechanism of this resonant force in nanomechanical systems. The friction can be negative, leading to the onset of self-sustained oscillations of the amplitude and phase of forced vibrations, which result in a frequency comb in the power spectrum.


Volume: 122 (25)      Da Pagina: 254301  A: 254301

Maggiori informazioni: M. I. D. and M. L. R. acknowledge partial support from the NSF (Grant No. DMR-1806473). M. I. D. was also supported in part by the Moore Distinguished Scholar program at Caltech. G. R. and E. M. W. acknowledge partial support from Deutsche Forschungsgemeinschaft through the collaborative research center SFB 767.
Parole chiavi: nonlinear dissipation, Duffing resonator, frequency comb
DOI: 10.1103/PhysRevLett.122.254301