论文标题
动态反向逃避宏伟的宏伟力学
Dynamical Backaction Evading Magnomechanics
论文作者
论文摘要
镁与机械振动之间的相互作用动态修改了机械振荡器的性能，例如其频率和衰减速率。这种效果称为动力背离，是许多理论方案的基础，例如纠缠产生或机械基态冷却。但是，动态背革也对特定应用也有害。在这里，我们证明了完全逃避动态背光效应的空腔雄伟测量的实现。通过仔细的工程，可以精确匹配混合磁化光子模式的磁机械散射速率，从而消除了动态背离阻尼。通过测量驱动器无关的机械线宽来确认反向逃避。
The interaction between magnons and mechanical vibrations dynamically modify the properties of the mechanical oscillator, such as its frequency and decay rate. Known as dynamical backaction, this effect is the basis for many theoretical protocols, such as entanglement generation or mechanical ground-state cooling. However, dynamical backaction is also detrimental for specific applications. Here, we demonstrate the implementation of a cavity magnomechanical measurement that fully evades dynamical backaction effects. Through careful engineering, the magnomechanical scattering rate into the hybrid magnon-photon modes can be precisely matched, eliminating dynamical backaction damping. Backaction evasion is confirmed via the measurement of a drive-power-independent mechanical linewidth.
