论文标题
机械耗散以下以下1 $μ$ Hz，具有低温磁磁性的微振荡器
Mechanical dissipation below 1$μ$Hz with a cryogenic diamagnetic-levitated micro-oscillator
论文作者
论文摘要
超大耗散在传感应用和使用微力机械系统探索宏观量子现象中起着重要作用。我们报告了一个抗磁性的微型机械振荡器在低温的低温下运行，测量的耗散量低至0.59 $μ$ Hz，质量因子高达$ 2 \ $ 2 \ times 10^7 $。据我们所知，实现的耗散是迄今为止的微型机械系统中最低的，这是基于不同原则的最新系统的数量级改进。此处描述的低温磁磁性电源振荡器适用于广泛的质量，使其成为以超高灵敏度测量力和加速度的良好候选者。由于天然现有的强磁梯度，该系统在量子自旋力学研究中具有巨大的潜力。
Ultralow dissipation plays an important role in sensing applications and exploring macroscopic quantum phenomena using micro-and nano-mechanical systems. We report a diamagnetic-levitated micro-mechanical oscillator operating at a low temperature of 3K with measured dissipation as low as 0.59 $μ$Hz and a quality factor as high as $2 \times 10^7$. To the best of our knowledge the achieved dissipation is the lowest in micro- and nano-mechanical systems to date, orders of magnitude improvement over the reported state-of-the-art systems based on different principles. The cryogenic diamagnetic-levitated oscillator described here is applicable to a wide range of mass, making it a good candidate for measuring both force and acceleration with ultra-high sensitivity. By virtue of the naturally existing strong magnetic gradient, this system has great potential in quantum spin mechanics study.
