Compensating for excess micromotion of ion crystals

A new method of compensating for the excess micromotion along two directions in three-dimensional Coulomb crystals is reported in this paper; this method is based on shape control and optical imaging of a Coulomb crystal in a sectioned linear ion trap. The characteristic parameters, such as the ion...

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Published inChinese physics B Vol. 24; no. 8; pp. 311 - 316
Main Author 杜丽军 陈婷 宋红芳 陈邵龙 李海霞 黄垚 童昕 管桦 高克林
Format Journal Article
LanguageEnglish
Published 01.08.2015
Subjects
Cooling
Coulomb friction
Crystal structure
Crystals
crystals;excess
Excitation spectra
exciting
ion
micromotion;secular
motion
Phase transformations
Shape control
Three dimensional
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/24/8/083702

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Summary:A new method of compensating for the excess micromotion along two directions in three-dimensional Coulomb crystals is reported in this paper; this method is based on shape control and optical imaging of a Coulomb crystal in a sectioned linear ion trap. The characteristic parameters, such as the ion numbers, temperatures, and geometric factors of different ion crystals are extracted from the images and secular motion excitation spectra. The method of controlling the shape of the ion crystals can be used in cold ion experiments, such as sympathetically cooling, structural phase transitions,and selective-control of ions, etc.
Bibliography:Du Li-Jun;Chen Ting;Song Hong-Fang;Chen Shao-Long;Li Hai-Xia;Huang Yao;Tong Xin;Guan Hua;Gao Ke-Lin;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences;Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences;University of Chinese Academy of Sciences
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/8/083702