论文标题
通过Floquet Engineering的多模式 - 波利顿超赞
Multimode-polariton superradiance via Floquet engineering
论文作者
论文摘要
我们考虑了一个近平面腔内的超声骨气原子的合奏，该腔体是由一个遥远的激光驱动的，该激光器的相位以与横向腔模式间距相当的频率进行调节。我们表明，对于许多横向腔模式，可以达到强大的分散原子 - 光子耦合。所得的浮子极性子涉及一组具有原子云的密度激发的腔模式的叠加。这些模式之间的相互相互作用导致极化子之间的明显避免过境。提高激光驱动强度，低洼的多模浮子极化量会柔软并最终变得未受阻碍，对应于向超级自动，自组织的相位的过渡。我们在广泛的参数中证明了固定态的稳定性。
We consider an ensemble of ultracold bosonic atoms within a near-planar cavity, driven by a far detuned laser whose phase is modulated at a frequency comparable to the transverse cavity mode spacing. We show that a strong, dispersive atom-photon coupling can be reached for many transverse cavity modes at once. The resulting Floquet polaritons involve a superposition of a set of cavity modes with a density excitation of the atomic cloud. The mutual interactions between these modes lead to distinct avoided crossings between the polaritons. Increasing the laser drive intensity, a low-lying multimode Floquet polariton softens and eventually becomes undamped, corresponding to the transition to a superradiant, self-organized phase. We demonstrate the stability of the stationary state for a broad range of parameters.
