Classical to Quantum Transition of a Driven Nonlinear Nanomechanical Resonator
Mesoscale and Nanoscale Physics
2009-04-21 v1 Quantum Physics
Abstract
We seek the first indications that a nanoelectromechanical system (NEMS) is entering the quantum domain as its mass and temperature are decreased. We find them by studying the transition from classical to quantum behavior of a driven nonlinear Duffing resonator. Numerical solutions of the equations of motion, operating in the bistable regime of the resonator, demonstrate that the quantum Wigner function gradually deviates from the corresponding classical phase-space probability density. These clear differences that develop due to nonlinearity can serve as experimental evidence, in the near future, that NEMS resonators are entering the quantum domain.
Keywords
Cite
@article{arxiv.cond-mat/0702255,
title = {Classical to Quantum Transition of a Driven Nonlinear Nanomechanical Resonator},
author = {Itamar Katz and Alex Retzker and Raphael Straub and Ron Lifshitz},
journal= {arXiv preprint arXiv:cond-mat/0702255},
year = {2009}
}