A tunable carbon nanotube electromechanical oscillator. Phonon lasing in an electromechanical resonator. Mahboob, I., Nishiguchi, K., Fujiwara, A. Phonon laser action in a tunable two-level system. ![]() Cooling a nanomechanical resonator with quantum back-action. Coupling mechanics to charge transport in carbon nanotube mechanical resonators. Lassagne, B., Tarakanov, Y., Kinaret, J., Daniel, G. Strong coupling between single-electron tunneling and nanomechanical motion. Intermittent polaron dynamics: Born-Oppenheimer approximation out of equilibrium. Approaching the quantum limit of a nanomechanical resonator. The radio-frequency single-electron transistor (RF-SET): a fast and ultrasensitive electrometer. Introduction to quantum noise, measurement, and amplification. We demonstrate other analogues of laser behaviour, including injection locking, classical squeezing through anharmonicity and frequency narrowing through feedback.Ĭlerk, A. Although the operating principle is unconventional because it does not involve stimulated emission, we confirm that the output is coherent. The single-electron transistor pumped by an electrical bias acts as a gain medium and the resonator acts as a phonon cavity. This electromechanical oscillator has some similarities with a laser. ![]() Here, we verify this prediction using real-time measurements of a vibrating carbon nanotube transistor. Despite the stochastic nature of this back-action, it has been predicted to create self-sustaining coherent mechanical oscillations under strong coupling conditions. While it allows fast and sensitive electromechanical measurements, it also introduces back-action forces from electron tunnelling that randomly perturb the mechanical state. ![]() A single-electron transistor embedded in a nanomechanical resonator represents an extreme limit of electron–phonon coupling.
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