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arXiv 1808.04031quant-ph
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单离子与光学腔的强耦合

Strong coupling of a single ion to an optical cavity

Hiroki Takahashi, Ezra Kassa, Costas Christoforou, Matthias Keller

摘要:

原子与电磁谐振腔的强耦合是腔量子电动力学(QED)的一个重要条件。虽然到目前为止,在各种物理系统中已经实现了强耦合,但对于单原子离子来说仍然难以实现。在本文中,我们证明了第一次的耦合强度超过原子和腔衰减率的单个离子的光学腔。我们使用腔辅助拉曼光谱精确地表征离子-腔耦合强度,并观察到由于离子-腔相互作用而在腔传输中具有法向模分裂的光谱。我们的工作为强耦合单囚禁离子腔QED在量子光学和量子技术中的新应用铺平了道路。

英文摘要:

Strong coupling between an atom and an electromagnetic resonator is an important condition in cavity quantum electrodynamics (QED). While strong coupling in various physical systems has been achieved so far, it remained elusive for single atomic ions. In this paper we demonstrate for the first time the coupling of a single ion to an optical cavity with a coupling strength exceeding both atomic and cavity decay rates. We use cavity assisted Raman spectroscopy to precisely characterize the ion-cavity coupling strength and observe a spectrum featuring the normal mode splitting in the cavity transmission due to the ion-cavity interaction. Our work paves the way towards new applications of cavity QED utilizing single trapped ions in the strong coupling regime for quantum optics and quantum technologies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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