Light shifts and magic wavelengths for heavy alkaline earth elements: Ba and Ra

U. Dammalapati, B. Santra, L. Willmann

研究成果: Article査読

6 被引用数 (Scopus)

抄録

In this paper, we investigate light shifts of heavy alkaline earth elements barium (Ba) and radium (Ra), which are interesting for optical lattice clocks and for permanent electric dipole moment searches. Detailed knowledge is required in the design of efficient loading of atoms from a magneto-optical trap into an optical dipole trap, to facilitate Doppler cooling while trapping and to achieve longer lifetimes of the trapped atoms with reduced heating rates. The wavelength dependence of light shifts of the ns 2 1S 0 ground state, the nsnp 3P 1 and ns(n - 1)d 1D 2 excited states in barium (n = 6) and the n s 2 1S 0 ground state, the nsnp 3P 1 and ns(n - 1)d 3D 2 excited states in radium (n = 7) are calculated. Several magic wavelengths in the visible and infrared regions accessible with commercial lasers for optical dipole trapping of Ba and Ra are identified.

本文言語English
論文番号025001
ジャーナルJournal of Physics B: Atomic, Molecular and Optical Physics
45
2
DOI
出版ステータスPublished - 2012 1月 28

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 凝縮系物理学

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