Magic Polarization for Optical Trapping of Atoms without Stark-Induced Dephasing
- Authors
- Kim, Huidong; Han, Hyok Sang; Cho, D.
- Issue Date
- 11-12월-2013
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.111, no.24
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 111
- Number
- 24
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/101301
- DOI
- 10.1103/PhysRevLett.111.243004
- ISSN
- 0031-9007
- Abstract
- We demonstrate that the differential ac-Stark shift of a Zeeman-sensitive ground hyperfine transition in an optical trap can be eliminated by using properly polarized trapping light. We use the vector polarizability of an alkali-metal atom to produce a polarization-dependent ac-Stark shift that resembles a Zeeman shift. We study a transition from the vertical bar 2S(1/2), F = 2, m(F) = -2 > to the vertical bar 2S(1/2,) F = 1, m(F) = -1 > state of Li-7 to observe 0.59 +/- 0.02 Hz linewidth with interrogation time of 2 s and 0.82 +/- 0.06 s coherence time of a superposition state. Implications of the narrow linewidth and the long coherence time for precision spectroscopy and quantum information processing using atoms in an optical lattice are discussed.
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Collections - College of Science > Department of Physics > 1. Journal Articles
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