Phys. Rev. A 72, 043404 (2005) [7 pages]Prospect of optical frequency standard based on a 43Ca+ ionSee Also: Erratum Received 12 January 2005; published 20 October 2005 An optical frequency standard based on the S-D transition of trapped 43Ca+ is possible by using just laser diodes for cooling and probing. We discuss two open problems related to the feasibility of this frequency standard, the attainable frequency uncertainty and the method of initial-state preparation. The uncertainty of the clock transition frequency can be so small as 1×10−15. Using a laser system consisting of three lasers at different detunings and polarizations, the ion can be cooled down to the Lamb-Dicke regime and then prepared in the m=0 state within a period much shorter than the cooling period without being heated. The details of our numerical simulation are described. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.043404
DOI:
10.1103/PhysRevA.72.043404
PACS:
32.60.+i, 32.70.Jz, 06.30.Ft, 32.80.Pj
See AlsoErratum: Masatoshi Kajita, Ying Li, Kensuke Matsubara, Kazuhiro Hayasaka, and Mizuhiko Hosokawa, Erratum: Prospect of optical frequency standard based on a 43Ca+ ion [Phys. Rev. A 72, 043404 (2005)], Phys. Rev. A 73, 029903 (2006). |
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