Crystalline ion structures in a Paul trap

被引：50

作者：

Block, M ^{[1
]}

Drakoudis, A ^{[1
]}

Leuthner, H ^{[1
]}

Seibert, P ^{[1
]}

Werth, G ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 11期

关键词：

D O I：

10.1088/0953-4075/33/11/101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have observed crystalline structures formed by laser cooled Ca+ ions in a three-dimensional confining potential. The potential has been realized using a linear Paul trap with different ratios of potential strength in the axial and radial directions. For radial confining potentials stronger than the axial potential, we find linear structures with a continuous transition from strings to helices with decreasing potential asymmetry. When a quasi-two-dimensional potential is formed we observe ring structures with a given maximum ion number per ring which we followed up to 19. The observations are essentially in agreement with molecular dynamics calculations in static two-dimensional potentials.

引用

页码：L375 / L382

页数：8