论文标题
阻抗调节的密码划分微波鱿鱼多路复用器
An Impedance-Modulated Code-Division Microwave SQUID Multiplexer
论文作者
论文摘要
在广泛的应用中，需要大量的低温探测器，包括过渡边缘传感器（TESS）或磁微量含量计（MMC）。整合和低温接线的复杂性促进了开发具有较大多重因子的低温读数技术的努力，同时保持最小的读数噪声。一个这样的例子是微波鱿鱼多路复用器（$μ$ MUX），它将传入的TES或磁热量计信号耦合到频率调制的唯一GHz频率共振。在这里，我们提出了一种混合方案，将微波鱿鱼多路复用器与代码分级多路复用：阻抗调节的代码分割多路复用器（Z-CDM），该方案可能会使多路复用因子的数量级增加，尤其是对于低键化信号信号应用程序。
Large arrays of cryogenic detectors, including transition-edge sensors (TESs) or magnetic micro-calorimeters (MMCs), are needed for future experiments across a wide range of applications. Complexities in integration and cryogenic wiring have driven efforts to develop cryogenic readout technologies with large multiplexing factors while maintaining minimal readout noise. One such example is the microwave SQUID multiplexer ($μ$mux), which couples an incoming TES or magnetic calorimeter signal to a unique GHz-frequency resonance that is modulated in frequency. Here, we present a hybrid scheme combining the microwave SQUID multiplexer with code division multiplexing: the impedance-modulated code-division multiplexer (Z-CDM), which may enable an order of magnitude increase in multiplexing factor particularly for low-bandwidth signal applications.
