Determination of ion quantity by using low-temperature ion density theory and molecular dynamics simulation

doi:10.1088/1674-1056/24/11/113703

Abstract In this paper, we report a method by which the ion quantity is estimated rapidly with an accuracy of 4%. This finding is based on the low-temperature ion density theory and combined with the ion crystal size obtained from experiment with the precision of a micrometer. The method is objective, straightforward, and independent of the molecular dynamics (MD) simulation. The result can be used as the reference for the MD simulation, and the method can improve the reliability and precision of MD simulation. This method is very helpful for intensively studying ion crystal, such as phase transition, spatial configuration, temporal evolution, dynamic character, cooling efficiency, and the temperature limit of the ions.

Keywords: ion crystal ion quantity low-temperature density model molecular dynamics simulation

Received: 11 June 2015
Revised: 28 July 2015
Accepted manuscript online:

PACS:	37.10.Ty	(Ion trapping)
	64.70.kp	(Ionic crystals)
	94.20.Fg	(Plasma temperature and density)
	52.65.Yy	(Molecular dynamics methods)

Fund: Project supported by the National Basic Research Program of China (Grant Nos. 2012CB821301 and 2010CB832803), the National Natural Science Foundation of China (Grant Nos. 11004222 and 91121016), and the Chinese Academy of Sciences.

Corresponding Authors: Guan Hua
E-mail: guanhua@wipm.ac.cn

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Du Li-Jun (杜丽军), Song Hong-Fang (宋红芳), Li Hai-Xia (李海霞), Chen Shao-Long (陈邵龙), Chen Ting (陈婷), Sun Huan-Yao (孙焕尧), Huang Yao (黄垚), Tong Xin (童昕), Guan Hua (管桦), Gao Ke-Lin (高克林) Determination of ion quantity by using low-temperature ion density theory and molecular dynamics simulation 2015 Chin. Phys. B 24 113703

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Determination of ion quantity by using low-temperature ion density theory and molecular dynamics simulation

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