Laser-like instabilities in quantum nano-electromechanical systems

被引:33
作者
Bennett, S. D. [1 ]
Clerk, A. A. [1 ]
机构
[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
来源
PHYSICAL REVIEW B | 2006年 / 74卷 / 20期
关键词
D O I
10.1103/PhysRevB.74.201301
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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's motion is coherent.
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页数:4
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