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.

引用

页数：4

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