Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field  

作　　者：Ji-Zhou Wu Yu-Qing Li Wen-Liang Liu Peng Li Xiao-Feng Wang Peng Chen Jie Ma Lian-Tuan Xiao Suo-Tang Jia 武寄洲;李玉清;刘文良;李鹏;王晓锋;陈鹏;马杰;肖连团;贾锁堂(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China;College of Physics and Electronics Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China [3]College of Physics and Electronics Engineering,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Physics B》2020年第8期239-242,共4页中国物理B（英文版）

基　　金：the National Key Research and Development Program of China(Grant No.2017YFA0304203);the National Natural Science Foundation of China(Grant Nos.61722507,61675121,and 61705123),PCSIRT,China(Grant No.IRT17R70),111 Project,China(Grant No.D18001);the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi(OIT),China;the Applied Basic Research Project of Shanxi Province,China(Grant Nos.201801D221004,201901D211191,and 201901D211188);the Shanxi 1331 KSC,and Collaborative Grant by the Russian Foundation for Basic Research and the National Natural Science Foundation of China(Grant Nos.6191101339 and 20-53-53025 in the RFBR classification)。

摘　　要：We report an effective method for enhancing the photoassociation of ultracold atoms using a non-resonant magnetic field,which enables the manipulation of the coupling between the wavefunctions of the colliding atomic pairs and the excited molecules.A series of photoassociation spectra are measured for different magnetic fields.We show that the photoassociation rate is significantly dependent on the non-resonant magnetic field.A qualitatively theoretical explanation is provided,and shows a good agreement with the experimental result.

关 键 词：PHOTOASSOCIATION ultracold atoms magnetic field 

分 类 号：O562[理学—原子与分子物理]