期刊
PHYSICAL REVIEW A
卷 86, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.063419
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资金
- NSF [PHY0855570]
- Division Of Physics
- Direct For Mathematical & Physical Scien [0855570] Funding Source: National Science Foundation
A hybrid ion-neutral trap provides an ideal system to study collisional dynamics between ions and neutral atoms. This system provides a general cooling method that can be applied to species that do not have optically accessible transitions and can also potentially cool internal degrees of freedom. The long-range polarization potentials (V proportional to - alpha/r(4)) between ions and neutrals result in large scattering cross sections at cold temperatures, making the hybrid trap a favorable system for efficient sympathetic cooling of ions by collisions with neutral atoms. We present experimental evidence of sympathetic cooling of trapped Na+ ions, which are closed shell and therefore do not have a laser-induced atomic transition from the ground state, by equal-mass cold Na atoms in a magneto-optical trap. DOI: 10.1103/PhysRevA.86.063419
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