Probing multiple-frequency atom-photon interactions with ultracold atoms
Probing multiple-frequency atom-photon interactions with ultracold atoms
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DOI：
10.1088/1367-2630/ab2f60
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发表时间：
2018-12
影响因子：
3.3
通讯作者：
K. Luksch;E. Bentine;A. Barker;S. Sunami;T. Harte;Ben Yuen;C J Foot
中科院分区：
文献类型：
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作者：
K. Luksch;E. Bentine;A. Barker;S. Sunami;T. Harte;Ben Yuen;C J Foot
我们用多射频（RF）场包裹原子，并研究了由附加探针场驱动的跃迁光谱。提出了这个丰富光谱的完整理论描述，其中我们找到了允许的跃迁，并使用分解形式确定了它们的振幅。实验上，我们利用捕获在单和多RF修饰势中的玻色-爱因斯坦凝聚体的RF光谱观察到探针场中高达六阶的跃迁。我们发现理论和实验之间非常一致，包括预测和验证以前未观察到的跃迁，即使在单射频情况下。
We dress atoms with multiple-radiofrequency (RF) fields and investigate the spectrum of transitions driven by an additional probe field. A complete theoretical description of this rich spectrum is presented, in which we find allowed transitions and determine their amplitudes using the resolvent formalism. Experimentally, we observe transitions up to sixth order in the probe field using RF spectroscopy of Bose–Einstein condensates trapped in single- and multiple-RF-dressed potentials. We find excellent agreement between theory and experiment, including the prediction and verification of previously unobserved transitions, even in the single-RF case.