In:
Chinese Physics Letters, IOP Publishing, Vol. 36, No. 7 ( 2019-07-01), p. 073701-
Abstract:
We obtain bi-component Coulomb crystals using laser-cooled 40 Ca + ions to sympathetically cool 9 Be + ions in a linear Paul trap. The shell structures of the bi-component Coulomb crystals are investigated. The secular motion frequencies of the two different ions are determined and compared with those in the single-component Coulomb crystals. In the radial direction, the resonant motion frequencies of the two ionic species shift toward each other due to the strong motion coupling in the ion trap. In the axial direction, the motion frequency of the laser-cooled 40 Ca + is impervious to the sympathetically cooled 9 Be + ions because the spatially separation of the two different ionic species leads to the weak motion coupling in the axial direction .
Type of Medium:
Online Resource
ISSN:
0256-307X
,
1741-3540
DOI:
10.1088/0256-307X/36/7/073701
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2019
detail.hit.zdb_id:
2040565-0
SSG:
6,25
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