Mode shaping in mixed ion crystals of 40Ca2+ and 40Ca+
Mode shaping in mixed ion crystals of 40Ca2+ and 40Ca+
复制标题
40Ca2 和 40Ca 混合离子晶体中的模式整形
DOI:
10.1007/s00340-013-5673-1
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
F. Schmidt-Kaler
中科院分区:
文献类型:
--
作者:
T. Feldker;L. Pelzer;M. Stappel;P. Bachor;D. Kolbe;J. Walz;F. Schmidt-Kaler
We present studies of mixed Coulomb crystals of40Ca+and40Ca2+ions in a linear Paul trap. Doubly charged ions are produced by photoionization of trapped40Ca+with a vacuum ultraviolet laser source and sympathetically cooled via Doppler cooled40Ca+ions. We investigate experimentally and theoretically the structural configurations and the vibrational modes of these mixed crystals. Our results with40Ca2+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.
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