量子磁子学：量子态的生成与应用
Quantum Magnonics: Quantum States Generation and Applications
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中文总结 AI 辅助
本文综述量子磁子学领域进展，先介绍腔磁子学强耦合实验，再阐述磁子量子态生成方案及应用，最后总结并展望该领域未来研究方向。
中文摘要 AI 辅助
基于铁磁材料（如钇铁石榴石）中磁子的混合系统在过去十年取得了显著发展，涵盖磁子与微波光子、光光子、超导量子比特、声子、自旋、铁磁体质心运动等的耦合。本文综述该领域的实验与理论进展，聚焦磁子量子态的生成及其在多领域的应用。由于强耦合是实现磁子相干量子控制和制备磁子量子态的前提，我们先介绍腔磁子学中具有代表性的强耦合实验，再综述一系列生成各类磁子量子态（如福克态、猫态、压缩态、纠缠态）的方案，并讨论其在宏观量子研究、量子信息科学、量子传感、磁子量子器件、暗物质探测等领域的潜在应用。最后总结本综述并展望量子磁子学未来的研究方向。
英文摘要
Hybrid systems based on magnons in ferromagnetic materials, such as yttrium iron garnet, have achieved remarkable development in the last decade. These include the coupling of magnons to microwave and optical photons, superconducting qubits, phonons, spins, the center-of-mass motion of a ferromagnet, etc. Here, we review both the experimental and theoretical progress in this field, focusing on the generation of magnonic quantum states and their applications in a broad range of fields. Since the strong coupling is a prerequisite for achieving coherent quantum control of magnons and preparing magnonic quantum states, we start by introducing representative strong-coupling experiments in cavity magnonics, then review a series of protocols for creating various magnonic quantum states, such as Fock, cat, squeezed, and entangled states, and discuss their potential applications in macroscopic quantum studies, quantum information science, quantum sensing, magnonic quantum devices, dark matter detection, and so on. Finally, we summarize the review and give an outlook for the future study of quantum magnonics.
