基于Hopf分岔的单光子光力学耦合速率的绝对确定

P. Piergentili, Wenlin Li, R. Natali, D. Vitali, G. Di Giuseppe
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引用次数: 9

摘要

建立了表征光机械系统中辐射压力相互作用的单光子光机械耦合率的测定方法。从热态到Hopf分岔并达到极限环的速率估计,使我们能够以一种简单而一致的方式确定单光子光机耦合速率。最重要的是,与其他方法相比,我们的方法不依赖于系统浴液温度的知识和信号的校准。我们提供了理论框架,并通过实验验证了该方法,为光力学系统的完整表征提供了一个过程,该过程可以扩展到腔光力学之外,每当谐振器通过与另一个自由度的适当相互作用被驱动到极限环时。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Absolute Determination of the Single-Photon Optomechanical Coupling Rate via a Hopf Bifurcation
We establish a method for the determination of the single-photon optomechanical coupling rate, which characterizes the radiation pressure interaction in an optomechanical system. The estimation of the rate with which a mechanical oscillator, initially in a thermal state, undergoes a Hopf bifurcation, and reaches a limit cycle, allows us to determine the single-photon optomechanical coupling rate in a simple and consistent way. Most importantly, and in contrast to other methods, our method does not rely on knowledge of the system's bath temperature and on a calibration of the signal. We provide the theoretical framework, and experimentally validate this method, providing a procedure for the full characterization of an optomechanical system, which could be extended outside cavity optomechanics, whenever a resonator is driven into a limit cycle by the appropriate interaction with another degree of freedom.
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