发表机构
Indian Institute of Technology (Banaras Hindu University)（印度理工大学（贝拿勒斯印度教大学））
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究在耗散耦合平面光子-磁子系统中探索非厄米Purcell效应，通过理论框架与仿真揭示磁子阻尼和饱和磁化强度对Purcell增强的控制，为芯片兼容的非厄米腔磁子学提供新策略。
AI 中文摘要
Purcell效应已成为控制腔和纳米光子系统中自发发射和耗散的有力机制；然而，其在耗散非厄米混合平台中的实现仍 largely unexplored。在本工作中，我们研究了由钇铁石榴石（YIG）薄膜与倒八边形环形谐振器（IORR）集成于平面几何结构中的耗散耦合光子-磁子混合量子系统中的Purcell效应。为描述潜在的耗散混合动力学，我们发展了一个基于非厄米耦合模理论并结合输入-输出形式体系的量子理论框架。我们还分析了光子-磁子系统的时间衰减动力学。全波电磁仿真表明，通过耗散光子-磁子耦合，系统可被设计为工作在能级吸引区域。通过系统调节磁子阻尼，我们揭示了Purcell区域的出现，在该区域中腔光子耗散通过磁子介导的损耗通道被选择性增强。我们进一步表明，饱和磁化强度（Ms）为Purcell增强的起始、可调性和鲁棒性提供了额外的控制自由度。磁子阻尼和Ms的联合调制强烈影响有效光子-磁子耦合、混合模式演化和耗散景观，从而实现对混合量子态的精确控制。这些发现为在平面、芯片兼容架构中工程化磁化和耗散控制的光子-磁子相互作用建立了一种通用策略，为非厄米腔磁子学、可调微波耗散工程和混合量子信息技术开辟了新途径。
英文摘要
The Purcell effect has emerged as a powerful mechanism for controlling spontaneous emission and dissipation in cavity and nanophotonic systems; however, its realization in dissipative non-Hermitian hybrid platforms remains largely unexplored. In this work, we investigate the Purcell effect in a dissipatively coupled photon-magnon hybrid quantum system consisting of a yttrium iron garnet (YIG) thin film integrated with an inverted octa-ring resonator (IORR) in a planar geometry. To describe the underlying dissipative hybrid dynamics, we develop a quantum theoretical framework based on non-Hermitian coupled-mode theory combined with the input-output formalism. We also analyze the temporal decay dynamics of the photon-magnon system. Full-wave electromagnetic simulations demonstrate that the system can be engineered to operate in the level-attraction regime through dissipative photon-magnon coupling. By systematically tuning the magnon damping, we uncover the emergence of a Purcell regime in which cavity-photon dissipation is selectively enhanced through magnon-mediated loss channels. We further show that the saturation magnetization (Ms) provides an additional degree of control over the onset, tunability, and robustness of the Purcell enhancement. The combined modulation of magnon damping and Ms strongly influences the effective photon-magnon coupling, hybrid-mode evolution, and dissipation landscape, enabling precise control of hybrid quantum states. These findings establish a versatile strategy for engineering magnetization- and dissipation-controlled photon-magnon interactions in planar, chip-compatible architectures, opening new avenues for non-Hermitian cavity magnonics, tunable microwave dissipation engineering, and hybrid quantum information technologies.
Comments18 pages 12 figures
