标题： 电磁诱导透明中的非线性塞曼效应 显示英文标题

标题： Nonlinear Zeeman effect in electromagnetically induced transparency

摘要： 我们在室温下的铯蒸气细胞中对一个里德伯电磁诱导透明（EIT）系统进行塞曼光谱分析，在磁场高达50高斯的情况下。 形成阶梯型EIT系统的$|6S_{1/2}, F_g=4 \rangle$基态、$|6P_{3/2}, F_e=5 \rangle$中间态和$|33S_{1/2} \rangle$里德伯态的磁相互作用分别处于线性塞曼、二次塞曼和深超精细帕申-巴克效应区域。 我们识别了EIT光谱中观察到的所有线条，并解释了它们的磁场和偏振依赖性。 从大约5高斯的磁场开始，光谱出现不对称性，这是由中间态的二次塞曼效应引起的。 在磁场$\gtrsim40$高斯时，这种不对称性变得尤为显著。 我们使用量子蒙特卡洛波函数方法对光谱及其不对称行为进行定量建模。 模拟得到的光谱与实验数据有良好的一致性。 模拟还用于研究磁场中的光学抽运，并探讨光学抽运与EIT之间的相互作用，这可以减少光子散射和光学抽运。 显示英文摘要

摘要： We perform Zeeman spectroscopy on a Rydberg electromagnetically induced transparency (EIT) system in a room-temperature Cs vapor cell, in magnetic fields up to 50~Gauss. The magnetic interaction of the $|6S_{1/2}, F_g=4 \rangle$ ground, $|6P_{3/2}, F_e=5 \rangle$ intermediate, and $|33S_{1/2} \rangle$ Rydberg states that form the ladder-type EIT system are in the linear Zeeman, quadratic Zeeman, and the deep hyperfine Paschen-Back regimes, respectively. We identify all lines observed in the EIT spectra and explain their magnetic-field and polarization-dependence. Starting in magnetic fields of about 5~Gauss, the spectra develop an asymmetry that is caused by the quadratic Zeeman effect of the intermediate state. The asymmetry becomes paramount in the magnetic fields $\gtrsim40$~Gauss. We use a quantum Monte Carlo wave-function approach to quantitatively model the spectra and their asymmetry behavior. Simulated spectra are in good agreement with the experimental data. The simulations are also used to study optical pumping in the magnetic field and to investigate the interplay between optical pumping and EIT, which reduces photon scattering and optical pumping.