论文标题
混合量子系统的非马尔可夫型破坏动力学，腔与旋转合奏强烈耦合：主方程方法
Non-Markovian decoherence dynamics of the hybrid quantum system with a cavity strongly coupling to a spin ensemble: a master equation approach
论文作者
论文摘要
基于最近对超导微波腔杂交量子系统的实验，在外部驾驶场下强烈耦合，与不均匀的宽扩大自旋整体结合，我们使用确切的主方程方法研究其非马克维亚的非马克维亚腐蚀动力学。在这里，旋转合奏是由钻石中带负电荷的氮胶（NV）缺陷制成的。我们针对开放系统的确切主方程理论描述了实验性的分解结果，并揭示了在强耦合方面抑制不均匀宽扩大引起的解相关的机制。此外，我们展示了光谱孔燃烧如何产生局部状态以进一步抑制腔脱碳。我们还研究了该系统中的两次相关性，以进一步显示量子波动如何表现量子存储器。
Based on the recent experiments on the hybrid quantum system of a superconducting microwave cavity coupling strongly to an inhomogeneous broadening spin ensemble under an external driving field, we use the exact master equation approach to investigate its non-Markovian decoherence dynamics. Here the spin ensemble is made by negatively charged nitrogen-vacancy (NV) defects in diamond. Our exact master equation theory for open systems depicts the experimental decoherence results and reveals the mechanism how the decoherence induced by the inhomogeneous broadening is suppressed in the strong-coupling regime. Moreover, we show how the spectral hole burning generates localized states to further suppress the cavity decoherence. We also investigate the two-time correlations in this system to further show how quantum fluctuations manifest quantum memory.
