发表机构
University of Windsor; Wilfrid Laurier University（温莎大学; 韦仕敦大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究在双Jaynes-Cummings模型中，探究原子-腔失谐与偶极-偶极相互作用对EPR量子导引的影响，发现保真度可作为腔QED系统中导引性的实用指标，为非经典关联的可控性提供了见解。
AI 中文摘要
我们研究双Jaynes-Cummings模型中的爱因斯坦-波多尔斯基-罗森（EPR）量子导引动力学，其中两个初始纠缠、空间分离的两能级原子分别处于两个腔中，与独立的腔模式发生相互作用。我们探究初始Werner型态中的固有噪声如何影响这类量子光学系统的导引动力学，还分析了实验相关条件下的导引演化，包括原子-腔失谐和偶极-偶极相互作用。研究发现，失谐和偶极-偶极耦合均有助于减少系统中的导引突然死亡现象；我们进一步确定了导引与态保真度之间的直接关联，揭示出一个阈值，当保真度低于该阈值时导引会消失，这表明在腔量子电动力学（QED）系统中，保真度可作为导引性的实用指标。我们的研究结果为真实光-物质平台中非经典关联的可控性与鲁棒性提供了见解。
英文摘要
We investigate the dynamics of Einstein-Podolsky-Rosen (EPR) steering in a double Jaynes-Cummings model, where two initially entangled spatially separated two-level atoms in two cavities interact with independent cavity modes. We study how the intrinsic noise in an initial Werner-type state affects the steering dynamics in this type of quantum optical system. We also analyze the evolution of steering under experimentally relevant conditions, including atom-cavity detuning and dipole-dipole interactions. We find that both detuning and dipole-dipole coupling help reduce steering sudden death in the system. We further identify a direct correlation between steering and state fidelity, revealing a threshold below which steering disappears. This suggests that fidelity may serve as a practical indicator of steerability in cavity QED systems. Our results provide insight into the controllability and robustness of non-classical correlations in realistic light-matter platforms.
