In developing technologies based on superconducting quantum circuits, the need to control and route heating is a significant challenge in the experimental realisation and operation of these devices. One of the more ubiquitous devices in the current quantum computing toolbox is the transmon-type superconducting quantum bit, embedded in a resonator-based architecture. In the study of heat transport in superconducting circuits, a versatile and sensitive thermometer is based on studying the tunnelling characteristics of superconducting probes weakly coupled to a normal-metal island. Here we show that by integrating superconducting quantum bit coupled to two superconducting resonators at different frequencies, each resonator terminated (and thermally populated) by such a mesoscopic thin film metal island, one can experimentally observe magnetic flux-tunable photonic heat rectification between 0 and 10%.

在开发基于超导量子电路的技术时，控制和路由加热的需求是这些设备的实验实现和操作中的重大挑战。当前的量子计算工具箱中最普遍的设备之一是transmon型超导量子位，嵌入在基于谐振器的架构中。在研究超导电路中的传热过程中，一种多功能且灵敏的温度计是基于研究弱耦合至普通金属岛的超导探针的隧穿特性而建立的。在这里，我们表明，通过集成耦合到两个不同频率的超导谐振器的超导量子位，每个谐振器都由这样的介观薄膜金属岛终止（并热填充），