Rydberg electromagnetically induced transparency in^(40)K ultracold Fermi gases  

作　　者：边国旗 单标 黄良辉 张靖 Guoqi Bian;Biao Shan;Lianghui Huang;Jing Zhang(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-electronics,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-electronics,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Optics Letters》2023年第10期7-12,共6页中国光学快报（英文版）

基　　金：supported by the Innovation Program for Quantum Science and Technology(No.2021ZD0302003);the National Natural Science Foundation of China(Nos.12034011,92065108,11974224,12022406,and 12004229);the National Key Research and Development Program of China(Nos.2022YFA1404101 and 2021YFA1401700);the Natural Science Basic Research Plan of Shaanxi Province,China(No.2019JQ-058);the Fund for Shanxi 1331 Project Key Subjects Construction.

摘　　要：We report the measurement of the electromagnetically induced transparency(EIT)with Rydberg states in ultracold^(40)K Fermi gases,which is obtained through a two-photon process with the ladder scheme.Rydberg–EIT lines are obtained by measuring the atomic losses instead of the transmitted probe beam.Based on the laser frequency stabilization locking to the superstable cavity,we study the Rydberg–EIT line shapes for the 37s and 35d states.We experimentally demonstrate the significant change in the Rydberg–EIT spectrum by changing the principal quantum number of the Rydberg state(n=37/52 and l=0).Moreover,the transparency peak position shift is observed,which may be induced by the interaction of the Rydberg atoms.This work provides a platform to explore many interesting behaviors involving Rydberg states in ultracold Fermi gases.

关 键 词：atomic and molecular physics hyperfine structure Rydberg states 

分 类 号：O441[理学—电磁学] O562[理学—物理]