Collective strong coupling in multimode cavity QED
Collective strong coupling in multimode cavity QED
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DOI：
10.1103/physreva.87.043817
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发表时间：
2013-04-15
影响因子：
2.9
通讯作者：
Renzoni, F.
中科院分区：
文献类型：
--
作者：
Wickenbrock, A.;Hemmerling, M.;Renzoni, F.
研究了一个具有若干简并横模的原子-腔系统。模式分辨腔透射光谱揭示了几种腔模式的原子腔共振，这是不同模式的集体强耦合的标志。此外，实验表明，腔模式是通过腔内原子系综耦合的。实验结果得到了详细的理论分析的支持。这项工作为在基于空腔的量子信息处理中使用相互作用的简并模式铺平了道路，其中对应于不同空腔模式的量子比特通过两个模式共享的原子相互作用。我们的研究结果也与超冷原子量子自旋玻璃的实验实现有关。DOI: 10.1103 / PhysRevA.87.043817
We study an atom-cavity system in which the cavity has several degenerate transverse modes. Mode-resolved cavity transmission spectroscopy reveals well-resolved atom-cavity resonances for several cavity modes, a signature of collective strong coupling for the different modes. Furthermore, the experiment shows that the cavity modes are coupled via the atomic ensemble contained in the cavity. The experimental observations are supported by a detailed theoretical analysis. The work paves the way to the use of interacting degenerate modes in cavity-based quantum information processing, where qubits corresponding to different cavity modes interact via an atom shared by the two modes. Our results are also relevant to the experimental realization of quantum spin glasses with ultracold atoms. DOI: 10.1103/PhysRevA.87.043817