Laser-cooling limits and single-ion spectroscopy | Zendy

D. J. Wineland | Zendy; Wayne M. Itano | Zendy; Jonas Bergquist | Zendy; Randall G. Hulet | Zendy

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Laser-cooling limits and single-ion spectroscopy

Author(s) -

D. J. Wineland,

Wayne M. Itano,

Jonas Bergquist,

Randall G. Hulet

Publication year - 1987

Publication title -

physical review. a, general physics

Language(s) - English

Resource type - Journals

ISSN - 0556-2791

DOI - 10.1103/physreva.36.2220

Subject(s) - laser cooling , sideband , ion , ion trap , atomic physics , penning trap , resolved sideband cooling , laser , materials science , spectroscopy , ion trapping , kinetic energy , doppler cooling , trap (plumbing) , radio frequency , physics , optics , microwave , telecommunications , quantum mechanics , computer science , x ray raman scattering , inelastic scattering , meteorology , scattering

The limitations to the achievement of low kinetic energies for laser cooling of single ions confined in electromagnetic traps are discussed. Sideband cooling of an ion in an rf (Paul) trap is reexamined including the effects of finite laser bandwidth and the energy of the rf micromotion. The micromotion is the oscillatory motion of the ion at the same frequency as the rf voltage applied to the trap electrodes. Sideband cooling of ions in a Penning trap is examined for the first time. In both cases, cooling to the zero-point energy of the ion in the trap should be possible and a method for verifying this condition is suggested. The implications for high-resolution, high-accuracy spectroscopy are investigated. Under certain conditions, the uncertainty in the second-order Doppler shift may be significantly less than 1 part in 10?18

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