标题： 超导微谐振器中自旋系综的快速低功耗操控 显示英文标题

标题： Fast, low-power manipulation of spin ensembles in superconducting microresonators

摘要： 我们展示了使用高Q值超导共面波导(CPW)微谐振器，通过非常低的微波功率(400 nW)对随机分布的自旋系综进行快速操控。 这种功率与稀释冰箱兼容，使自旋系综的微波操控在量子计算应用中成为可能。 我们还描述了使用绝热微波脉冲来克服CPW谐振器固有的微波磁场($B_{1}$)不均匀性。 这使得能够对随机分布的自旋系综进行均匀控制。 报告了灵敏度数据，显示对$10^{7}$自旋或$3 \times 10^{4}$自旋/$\sqrt{Hz}$的单次测量(无信号平均)灵敏度。 显示英文摘要

摘要： We demonstrate the use of high-Q superconducting coplanar waveguide (CPW) microresonators to perform rapid manipulations on a randomly distributed spin ensemble using very low microwave power (400 nW). This power is compatible with dilution refrigerators, making microwave manipulation of spin ensembles feasible for quantum computing applications. We also describe the use of adiabatic microwave pulses to overcome microwave magnetic field ($B_{1}$) inhomogeneities inherent to CPW resonators. This allows for uniform control over a randomly distributed spin ensemble. Sensitivity data are reported showing a single shot (no signal averaging) sensitivity to $10^{7}$ spins or $3 \times 10^{4}$ spins/$\sqrt{Hz}$ with averaging.