Observation of single collisionally cooled trapped ions in a buffer gas

Details Observation of single collisionally cooled trapped ions in a buffer gas Observation of single collisionally cooled trapped ions in a buffer gas

2007-02-14

arxiv.org/abs/physics/0702122v2

Physics

Atomic Physics

5 pages, 4 figures, accepted for publication in Phys. Rev. A. Minor text and figure changes

Scientific paper

10.1103/PhysRevA.76.023404

Individual Ba ions are trapped in a gas-filled linear ion trap and observed with a high signal-to-noise ratio by resonance fluorescence. Single-ion storage times of ~5 min (~1 min) are achieved using He (Ar) as a buffer gas at pressures in the range 8e-5 - 4e-3 torr. Trap dynamics in buffer gases are experimentally studied in the simple case of single ions. In particular, the cooling effects of light gases such as He and Ar and the destabilizing properties of heavier gases such as Xe are studied. A simple model is offered to explain the observed phenomenology.

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