Phenomena involved in magnons have attracted extensive attention for several decades because of their challenging physical properties, powerful capabilities, and potential applications in signal processing in the microwave frequency range. In this work study we study the steady-state dynamic processes of a hybrid quantum system based on magnonics, where the magnon mode couples dispersively to a superconducting qubit. We find that the dispersive coupling between the qubit and magnons causes the system to be bistable and we discuss in detail an interesting phenomenon of dispersive-coupling-induced absorption of magnons. Furthermore, a feasible scheme to measure the qubit-magnon dispersive shift by employing the absorption curves of the probe field is proposed. The results presented here are of great significance to the investigation of the steady-state dynamic behaviors of quantum magnonics in a strong-dispersive regime and may provide a theoretical reference for the realization of quantum sensing of magnons.

中文翻译：

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色散耦合混合量子系统中的磁振子吸收

几十年来，磁振子所涉及的现象因其具有挑战性的物理特性、强大的能力以及在微波频率范围内的信号处理中的潜在应用而引起了广泛关注。在这项工作研究中，我们研究了基于磁振子的混合量子系统的稳态动态过程，其中磁振子模式色散地耦合到超导量子位。我们发现量子位和磁振子之间的色散耦合导致系统双稳态，我们详细讨论了色散耦合诱导磁振子吸收的有趣现象。此外，提出了一种利用探测场的吸收曲线来测量量子位-磁振子色散位移的可行方案。