论文标题
用于微波设备的片测量值的亚kelvin温度计，利用两级系统在超导微波器中
Sub-Kelvin Thermometer for On-Chip Measurements of Microwave Devices Utilizing Two-Level Systems in Superconducting Microresonators
论文作者
论文摘要
我们提出了一个基于两级系统（TLS）的超导微孔子温度计，该温度计与低温微波系统兼容。操作温度范围为50-1000〜MK（可以扩展到5〜MK），并且在此范围内相对均匀。方便地连接到低温微波设备馈线的微型足迹有助于测量片上设备温度，并且不需要其他额外的温度计线或读取电子设备。我们证明了这些TLS温度计的实际用途，以研究具有强泵音调操作的动力电感传播波参数放大器中的静态和瞬态芯片加热。 TLS温度计可能会在低温微波设备中发现广泛的应用，例如超导量子和检测器。
We present a superconducting microresonator thermometer based on two-level systems (TLS) that is drop-in compatible with cryogenic microwave systems. The operational temperature range is 50-1000~mK (which may be extended to 5~mK), and the sensitivity (50-75~$μ$K/$\sqrt{\mathrm{Hz}}$) is relatively uniform across this range. The miniature footprint that conveniently attaches to the feedline of a cryogenic microwave device facilitates the measurement of on-chip device temperature and requires no additional thermometry wiring or readout electronics. We demonstrate the practical use of these TLS thermometers to investigate static and transient chip heating in a kinetic inductance traveling-wave parametric amplifier operated with a strong pump tone. TLS thermometry may find broad application in cryogenic microwave devices such as superconducting qubits and detectors.
