Cooling and trapping polar molecules in an electrostatic trap  

作　　者：王振霞 顾振兴 邓联忠 印建平 

机构地区：[1]State Key Laboratory of Precision Spectroscopy, East China Normal University

出　　处：《Chinese Physics B》2015年第5期318-322,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.10674047,10804031,10904037,10974055,11034002,and 11274114);the National Key Basic Research and Development Program of China(Grant Nos.2006CB921604 and 2011CB921602);the Basic Key Program of Shanghai Municipality,China(Grant No.07JC14017);the Shanghai Leading Academic Discipline Project,China(Grant No.B408)

摘　　要：An electrostatic trap for polar molecules is proposed. Loading and trapping of polar molecules can be realized by applying different voltages to the two electrodes of the trap. For ND3 molecular beams centered at -10 m/s, a high loading efficiency of -67% can be obtained, as confirmed by our Monte Carlo simulations. The volume of our trap is as large as ,-3.6 cm3, suitable for study of the adiabatic cooling of trapped molecules. Our simulations indicate that trapped ND3 molecules can be cooled from -23.3 mK to 1.47 mK by reducing the trapping voltages on the electrodes from 50.0 kV to 1.00 kV.An electrostatic trap for polar molecules is proposed. Loading and trapping of polar molecules can be realized by applying different voltages to the two electrodes of the trap. For ND3 molecular beams centered at -10 m/s, a high loading efficiency of -67% can be obtained, as confirmed by our Monte Carlo simulations. The volume of our trap is as large as ,-3.6 cm3, suitable for study of the adiabatic cooling of trapped molecules. Our simulations indicate that trapped ND3 molecules can be cooled from -23.3 mK to 1.47 mK by reducing the trapping voltages on the electrodes from 50.0 kV to 1.00 kV.

关 键 词：trapping molecules cooling molecules Stark shift of molecules 

分 类 号：O561[理学—原子与分子物理]