Microwave signal processing using an analog quantum reservoir computer

This paper demonstrates the use of a quantum superconducting circuit as an analog quantum reservoir for microwave signal classification tasks. The system, comprising an oscillator coupled to a qubit, processes analog-continuous signals directly, avoiding the discretization required in previous digital QRC implementations. High accuracy was achieved across various classification tasks, suggesting a potential path towards quantum sensing-computational advantage for ultra-low-power microwave signals.

Alen Senanian, Sridhar Prabhu, Vladimir Kremenetski, Saswata Roy, Yingkang Cao, Jeremy Kline, Tatsuhiro Onodera, Logan G. Wright, Xiaodi Wu, Valla Fatemi, Peter L. McMahon