论文标题
部分可观测时空混沌系统的无模型预测
Emitter-Optomechanical Interaction in Ultra-High-Q hBN Nanocavities
论文作者
论文摘要
将量子发射器集成到纳米腔中，这些发射器同时将其搭配到光子和机械模式对于将电子旋转，光子和声子连接到腔QED系统中至关重要。在这里，我们研究了带电的硼空缺$ v_b^ - $，Ultra-High-Q（$ \ sim10^5 $）腔光模式与本地声子模式之间的相互作用。在发射光谱中观察到一个明显的不对称性，对于Q因子高于10 $^4 $的腔体的腔体。对于没有$ v_b^ - $中心的腔体不会观察到类似的不对称。为了解释我们的发现，我们根据$ v_b^ - $中心使用声子诱导的光 - 耦合对系统进行建模，并与常规发射器的Jaynes-Cummings模型进行比较。我们的结果表明，多部分相互作用是在$ v_b^ - $中心的光结合过程中产生的，这说明了它是呼应子诱导的，而不是由声子模式的热种群引起的。不同光子（$ v_b^ - $发射，腔光子）和声子（$ v_b^ - $ phonon，腔，腔机械）模式之间的这种发射异常力学的相互作用为凝结问题中的接口自旋缺陷，光子和声子提供了一种新型系统。
Integrating quantum emitters into nanocavities which simultaneously couple to the photonic and mechanical modes is critical for interfacing electron spins, photons and phonons in the cavity QED system. Here, we investigate the interaction between the charged boron vacancy $V_B^-$, ultra-high-Q ($\sim10^5$) cavity photonic modes and local phonon modes. A pronounced asymmetry is observed in the emission spectrum for cavities with Q-factor above a threshold of 10$^4$. Similar asymmetries are not observed for cavities without $V_B^-$ centers. To explain our findings, we model the system with phonon-induced light-matter coupling based on $V_B^-$ centers, and compare to the Jaynes-Cummings model for usual emitters. Our results reveal that the multipartite interplay arises during the light-matter coupling of $V_B^-$ centers, illustrating that it is phonon-induced, rather than being caused by thermal population of phonon modes. Such emitter-optomechanical interaction between different photon ($V_B^-$ emission, cavity photonic) and phonon ($V_B^-$ phonon, cavity mechanical) modes provides a novel system to interface spin defects, photons and phonons in condensed matters.
