论文标题
通过非线性反馈冷凝和冷却
Phonon condensation and cooling via nonlinear feedback
论文作者
论文摘要
我们表明，在多模具系统中，可以通过非线性反馈同时实现所有其他模式的最低模式的扩增和所有其他模式的阻尼。多模系统的反馈引起的动力学与声子冷凝的形成有关。最低模式的声子统计量与声子激光器的统计数据相似。最后，我们显示最低模式的连贯性可以通过数量级提高。
We show that in multimode mechanical systems, the amplification of the lowest mode and the damping of all the other modes can be realized simultaneously via nonlinear feedback. The feedback-induced dynamics of the multimode system is related to the formation of phonon condensation. The phonon statistics of the lowest mode are similar to those of a phonon laser. Finally, we show the coherence of the lowest mode can be improved by an order of magnitude.
