AI 中文总结
本文介绍了一套用于研究量子气体混合物中费米极化子的实验平台，利用锂-铯量子气体系统，通过光学拉曼光谱制备重费米极化子，可探索此前未涉及的费米极化子参数区域。
AI 中文摘要
我们展示了用于研究量子气体混合物中费米极化子的实验平台的细节。该系统由约1000个玻色型¹³³Cs杂质原子组成，这些杂质浸没在约2×10⁵个处于单一超精细态的⁶Li原子形成的深度简并费米气体中（温度与费米温度之比T/T_F≈0.2），种间相互作用可通过费什巴赫共振调谐。我们采用无相对动量转移的光学拉曼光谱，进行注入光谱测量以制备费米极化子。由于两种原子的质量差异很大，该装置可进入费米极化子此前未被探索的参数区域。
英文摘要
We present details of an experimental platform for studying Fermi polarons in a quantum-gas mixture. The system consists of about a thousand bosonic $^{133}$Cs impurities immersed in a deeply degenerate Fermi gas ($T/T_F \sim 0.2$) of approximately $2\times 10^5$ $^6$Li atoms in a single hyperfine state, with interspecies interactions tunable via a Feshbach resonance. Using optical Raman spectroscopy without relative momentum transfer, we perform injection spectroscopy and thereby create the Fermi polaron. Owing to the large mass imbalance between the two species, the setup provides access to previously unexplored regimes of Fermi polarons.
