Laser-like Instabilities in Quantum Nano-electromechanical Systems

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.

4+ pages, 1 figure; reference to the work of Dykman and Krivoglaz added

References in corpus (6)

• Cooling a nanomechanical resonator with quantum back-action
• Quantum-Limited Position Detection and Amplification: A Linear Response Perspective
• Quantum nano-electromechanics with electrons, quasiparticles and Cooper pairs: effective bath descriptions and strong feedback effects
• Single-electron Tunneling with Strong Mechanical Feedback
• Dynamics of a nanomechanical resonator coupled to a superconducting single-electron transistor
• Nanomechanical Analog of a Laser: Amplification of Mechanical Oscillations by Stimulated Zeeman Transitions

Cited by in corpus (5)

• Single-qubit lasing and cooling at the Rabi frequency
• Sisyphus cooling and amplification by a superconducting qubit
• Dissipation in circuit quantum electrodynamics: lasing and cooling of a low-frequency oscillator
• Current noise of a superconducting single electron transistor coupled to a resonator
• Transport properties of a superconducting single-electron transistor coupled to a nanomechanical oscillator