Mode shaping in mixed ion crystals of 40Ca2+ and 40Ca+

被引：7
作者：
Feldker, T. [1 ]
Pelzer, L. [1 ]
Stappel, M. [1 ,2 ]
Bachor, P. [1 ,2 ]
Steinborn, R. [1 ,2 ]
Kolbe, D. [1 ,2 ]
Walz, J. [1 ,2 ]
Schmidt-Kaler, F. [1 ]
机构：
[1] Johannes Gutenberg Univ Mainz, Inst Phys, QUANTUM, D-55128 Mainz, Germany
[2] Helmholtz Inst, D-55099 Mainz, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2014年 / 114卷 / 1-2期
关键词：
TRAPPED IONS; DEFECT FORMATION; QUANTUM; LAW;
D O I：
10.1007/s00340-013-5673-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present studies of mixed Coulomb crystals of Ca-40(+) and Ca-40(2+) ions in a linear Paul trap. Doubly charged ions are produced by photoionization of trapped Ca-40(+) with a vacuum ultraviolet laser source and sympathetically cooled via Doppler cooled Ca-40(+) ions. We investigate experimentally and theoretically the structural configurations and the vibrational modes of these mixed crystals. Our results with Ca-40(2+) are an important step towards experimental realization of the proposals for mode shaping in a linear crystal and spin-dependent configuration changes from zigzag to linear as proposed by Li et al. (Phys Rev A 87:052304, 2013) and Li and Lesanovsky (Phys Rev Lett 108:023003, 2012) using ions excited to Rydberg states.
引用
收藏
页码：11 / 16
页数：6
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