Power-Law Distributions for a Trapped Ion Interacting with a Classical Buffer Gas

被引：174

作者：

DeVoe, Ralph G. ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 06期

关键词：

DYNAMICS;

D O I：

10.1103/PhysRevLett.102.063001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Classical collisions with an ideal gas generate non-Maxwellian distribution functions for a single ion in a radio frequency ion trap. The distributions have power-law tails whose exponent depends on the ratio of buffer gas to ion mass. This provides a statistical explanation for the previously observed transition from cooling to heating. Monte Carlo results approximate a Tsallis distribution over a wide range of parameters and have ab initio agreement with experiment.

引用

页数：4

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