AI 中文总结
研究可扩展量子计算中电气互连瓶颈，通过在低温环境对比有线和无线操作，展示对超导微波谐振器的无线激发，揭示寄生电磁路径，为无线互连等与超导量子硬件的协同设计建立框架。
AI 中文摘要
可扩展量子计算受限于将低温量子处理器与室温控制电子设备相连的密集电气互连网络。为克服这一瓶颈，大量工作聚焦于低温CMOS电子学和微波到光学的转换，以降低布线复杂度和热负载。无线互连最近成为一种有前景的补充方法，但其与超导量子硬件的兼容性仍 largely未被探索。在此，我们展示了在稀释制冷机内毫开尔文温度下对常用于量子比特读出的超导微波谐振器的无线激发。通过在同一低温环境中直接比较有线和无线操作，我们表明无线耦合保留了谐振器的固有响应，同时揭示了低温恒温器外壳内杂散辐射产生的寄生电磁路径。这些结果为无线互连、低温封装和超导量子硬件的协同设计建立了一个框架。
英文摘要
Scalable quantum computing is limited by the dense network of electrical interconnects linking cryogenic quantum processors to room-temperature control electronics. To overcome this bottleneck, considerable effort has focused on cryogenic CMOS electronics and microwave-to-optical transduction, aiming to reduce wiring complexity and thermal loading. Wireless interconnects have recently emerged as a promising complementary approach, yet their compatibility with superconducting quantum hardware remains largely unexplored. Here, we demonstrate the wireless excitation of a superconducting microwave resonator of the type routinely employed for qubit readout, operating at millikelvin temperatures inside a dilution refrigerator. By directly comparing wired and wireless operation within the same cryogenic environment, we show that wireless coupling preserves the intrinsic resonator response while revealing parasitic electromagnetic pathways arising from stray radiation within the cryostat enclosure. These results establish a framework for the co-design of wireless interconnects, cryogenic packaging and superconducting quantum hardware.
Comments10 pages, 8 figures, includes appendix
