论文标题
超导纳米机电换能器对磁场的弹性
Superconducting Nanoelectromechanical Transducer Resilient to Magnetic Fields
论文作者
论文摘要
纳米级机电耦合为控制超导腔机电设备中的机械运动和微波场提供了独特的途径。尽管它们在利用光学机械或机电的反作用效应来实现各种目的方面取得了成功，但铝在其工作条件下对其工作条件施加了严重的限制，其超导临界温度（1.2 K）和磁场（0.01 T）（0.01 T）。为了扩展设备的潜力，我们在这里制造了采用鸡的超导机电设备，并证明了一组腔机电动力学，包括背部冷却和扩增，以及在4.2 K和机电机械上诱导的反射，并在强大的磁场上通过强大的磁场来实现该设备。可以在稀释冰箱的4K阶段安装的单个芯片上的循环器。此外，凭借同时控制和读取纳米力学运动的能力，这种niobium机电传感器可以提供强大的纳米力学传感平台。
Nanoscale electromechanical coupling provides a unique route towards control of mechanical motions and microwave fields in superconducting cavity electromechanical devices. Though their successes in utilizing the optomechanical or electromechanical back-action effects for various purposes, aluminum imposes severe constraints on their operating conditions with its low superconducting critical temperature (1.2 K) and magnetic field (0.01 T). To extend the potential of the devices, here we fabricate a superconducting electromechanical device employing niobium and demonstrate a set of cavity electromechanical dynamics including back-action cooling and amplification, and electromechanically induced reflection at 4.2 K and in strong magnetic fields up to 0.8 T. This device could be used to realize electromechanical microwave components for quantum technologies by integrating amplifiers, converters, and circulators on a single chip that can be installed at the 4K stage of dilution refrigerators. Moreover, with its ability to control and readout nanomechanical motions simultaneously, this niobium electromechanical transducer could provide powerful nanomechanical sensing platforms.
