2007/01/11 by Vitaly D. Ovsiannikov, Ovsiannikov, Vitaly D., Vitaly G. Palchikov +9
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum, superfluid, helium dynamics
paper · pdf · doi:10.48550/arxiv.physics/0701134
openalex publication_date 2007/01/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The circular polarized laser beam of the ``magic'' wavelength may be used for mixing the 3P1 state into the long-living metastable state 3P0, thus enabling the strictly forbidden 1S0-3P0 ''clock'' transition in even isotopes of alkaline-earth-like atoms, without change of the transition frequency. In odd isotopes the laser beam may adjust to an optimum value the line width of the "clock" transition, originally enabled by the hyperfine mixing. We present a detailed analysis of various factors influencing resolution and uncertainty for an optical frequency standard based on atoms exposed simultaneously to the lattice standing wave and an additional "state-mixing" wave, including estimations of the "magic" wavelengths, Rabi frequencies for the ''clock'' and state-mixing transitions, ac Stark shifts for the ground and metastable states of divalent atoms.