Rabi Spectroscopy and Sensitivity of a Floquet Engineered Optical Lattice Clock

• 作者: Mo-Juan Yin Tao Wang Xiao-Tong Lu Ting Li Ye-Bing Wang Xue-Feng Zhang Wei-Dong Li Augusto Smerzi Hong Chang
• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 38-53
• 页数: 16页
• 语种: 英文
• DOI: 10.1088/0256-307X/38/7/073201

摘要

We periodically modulate the lattice trapping potential of a 87Sr optical clock to Floquet engineer the clock transition.In the context of atomic gases in lattices,Floquet engineering has been used to shape the dispersion and topology of Bloch quasi-energy bands.Differently from these previous works manipulating the external(spatial) quasi-energies,we target the internal atomic degrees of freedom.We shape Floquet spin quasi-energies and measure their resonance profiles with Rabi spectroscopy.We provide the spectroscopic sensitivity of each band by measuring the Fisher information and show that this is not depleted by the Floquet dynamical modulation.The demonstration that the internal degrees of freedom can be selectively engineered by manipulating the external degrees of freedom inaugurates a novel device with potential applications in metrology,sensing and quantum simulations.