Laser-like Instabilities in Quantum Nano-electromechanical Systems
Mesoscale and Nanoscale Physics
2007-05-23 v2
Abstract
We discuss negative damping regimes in quantum nano-electromechanical systems formed by coupling a mechanical oscillator to a single-electron transistor (normal or superconducting). Using an analogy to a laser with a tunable atom-field coupling, we demonstrate how these effects scale with system parameters. We also discuss the fluctuation physics of both the oscillator and the single-electron transistor in this regime, and the degree to which the oscillator motion is coherent.
Cite
@article{arxiv.cond-mat/0609329,
title = {Laser-like Instabilities in Quantum Nano-electromechanical Systems},
author = {S. D. Bennett and A. A. Clerk},
journal= {arXiv preprint arXiv:cond-mat/0609329},
year = {2007}
}
Comments
4+ pages, 1 figure; reference to the work of Dykman and Krivoglaz added