论文标题
用自旋电路量子电动力学探测Jaynes-Cummings梯子
Probing the Jaynes-Cummings Ladder with Spin Circuit Quantum Electrodynamics
论文作者
论文摘要
我们报告了用电子旋转（旋转电路QED）的Jaynes-Cummings梯子梯子中激发状态之间的过渡的观察。我们表明，最近的实验工作中无法解释的特征对应于此类过渡，并提出了包括这些效果的输入输出框架。在新实验中，我们首先再现了先前的观察结果，然后通过增加探针功率和使用两色谱光谱法来揭示激发状态的转变和多光子转变。这种探测Jaynes-Cummings梯子的能力是通过改进耦合与辅助比率来实现的，并显示了自旋电路QED的成熟度的增加，这是研究量子现象的有趣平台。
We report observations of transitions between excited states in the Jaynes-Cummings ladder of circuit quantum electrodynamics with electron spins (spin circuit QED). We show that unexplained features in recent experimental work correspond to such transitions and present an input-output framework that includes these effects. In new experiments, we first reproduce previous observations and then reveal both excited-state transitions and multiphoton transitions by increasing the probe power and using two-tone spectroscopy. This ability to probe the Jaynes-Cummings ladder is enabled by improvements in the coupling-to-decoherence ratio, and shows an increase in the maturity of spin circuit QED as an interesting platform for studying quantum phenomena.
