Cooling and trapping polar molecules in an electrostatic trap

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 C...

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Published inChinese physics B Vol. 24; no. 5; pp. 318 - 322
Main Author 王振霞 顾振兴 邓联忠 印建平
Format Journal Article
LanguageEnglish
Published 01.05.2015
Subjects
Computer simulation
Cooling
Electric potential
Electrodes
Electrostatics
Molecular beams
Trapping
Voltage
俘获
冷却
分子束
存水弯
极性分子
蒙特卡洛模拟
陷阱
静电
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/24/5/053701

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Summary: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.
Bibliography: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.
11-5639/O4
trapping molecules, cooling molecules, Stark shift of molecules
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/5/053701