期刊
PHYSICAL REVIEW A
卷 105, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.105.043321
关键词
-
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [277625399-TRR 185, EXC 2004/1 -390534769]
- Bundesministerium fur Bildung und Forschung (BMBF)
High-bandwidth fiber-based optical cavities are useful for coupling stationary qubits and photons in future quantum networks. However, the Purcell effect hinders fluorescence imaging in high-bandwidth cavities. This study restores imaging of Rb-87 atoms coupled to a fiber Fabry-Perot cavity by detecting repumper fluorescence. Spectroscopic investigations are conducted to understand the effects of repumper-induced light shifts on Raman resonance, providing insights into dipole-force fluctuations in the heating dynamics of trapped atoms.
High-bandwidth, fiber-based optical cavities are a promising building block for future quantum networks. They are used to resonantly couple stationary qubits such as single or multiple atoms with photons routing quantum information into a fiber network at high rates. In high-bandwidth cavities, standard fluorescence imaging on the atom-cavity resonance line for controlling atom positions is impaired since the Purcell effect strongly suppresses all-directional fluorescence. Here, we restore imaging of Rb-87 atoms strongly coupled to such a fiber Fabry-Perot cavity by detecting the repumper fluorescence which is generated by continuous and three-dimensional Raman sideband cooling. We have carried out a detailed spectroscopic investigation of the repumper-induced differential light shifts affecting the Raman resonance, dependent on intensity and detuning. Our analysis identifies a compromise regime between imaging signal-to-noise ratio and survival rate, where physical insight into the role of dipole-force fluctuations in the heating dynamics of trapped atoms is gained.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据