AI 中文总结
研究通过反亥姆霍兹线圈施加磁场梯度控制自旋系综光谱分布，实现其与传输线阻抗匹配及-50dB吸收，为量子存储器迈出第一步，还建模预测响应并调节耦合转变。
AI 中文摘要
我们通过在稀释制冷机内使用反亥姆霍兹线圈施加磁场梯度来控制自旋系综的光谱分布，并展示了系综与传输线之间的阻抗匹配，实现了对入射辐射-50dB的吸收。这是迈向基于自旋系综的量子存储器的第一步。我们进一步对施加梯度下的光谱分布进行建模以预测自旋谐振器响应，并在连续波和时域脉冲测量中使用该装置系统地调节弱到强耦合的转变。
英文摘要
We control the spectral distribution of a spin ensemble by applying a magnetic field gradient using an anti-Helmholtz coil inside a dilution refrigerator, and demonstrate impedance matching between the ensemble and a transmission line, achieving -50 dB absorption of incident radiation. This represents a first step toward a spin-ensemble-based quantum memory for itinerant microwave photons. We further model the spectral distribution under the applied gradient to predict the spin-resonator response, and use the device to systematically tune the weak-to-strong coupling transition in both continuous-wave and time-domain pulsed measurements.
CommentsMain text plus Supplemental Material; 8 figures
