Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator

Details Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator

2005-09-26

arxiv.org/abs/cond-mat/0509667v1

Phys. Rev. Lett. 97, 110602 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.97.110602

We measure the spectral densities of fluctuations of an underdamped nonlinear micromechanical oscillator. By applying a sufficiently large periodic excitation, two stable dynamical states are obtained within a particular range of driving frequency. White noise is injected into the excitation, allowing the system to overcome the activation barrier and switch between the two states. While the oscillator predominately resides in one of the two states for most excitation frequencies, a narrow range of frequencies exist where the occupations of the two states are approximately equal. At these frequencies, the oscillator undergoes a kinetic phase transition that resembles the phase transition of thermal equilibrium systems. We observe a supernarrow peak in the power spectral densities of fluctuations of the oscillator. This peak is centered at the excitation frequency and arises as a result of noise-induced transitions between the two dynamical states.

Affiliated with

Also associated with

No associations

Rating

Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supernarrow spectral peaks near a kinetic phase transition in a driven, nonlinear micromechanical oscillator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-225398