Zeeman slowers made simple with permanent magnets in a Halbach configuration

Details Zeeman slowers made simple with permanent magnets in a Halbach configuration Zeeman slowers made simple with permanent magnets in a Halbach configuration

2011-01-17

arxiv.org/abs/1101.3243v3

Rev. Sci. Inst., {\bf 82}, 063115 (2011)

Physics

Condensed Matter

Quantum Gases

8+6 pages (article + appendices: calculation details, probe and oven description, pictures), 18 figures, supplementary materia

Scientific paper

10.1063/1.3600897

We describe a simple Zeeman slower design using permanent magnets. Contrary to common wire-wound setups no electric power and water cooling are required. In addition, the whole system can be assembled and disassembled at will. The magnetic field is however transverse to the atomic motion and an extra repumper laser is necessary. A Halbach configuration of the magnets produces a high quality magnetic field and no further adjustment is needed. After optimization of the laser parameters, the apparatus produces an intense beam of slow and cold 87Rb atoms. With a typical flux of 1 - 5 \times 10^10 atoms/s at 30 ms^-1, our apparatus efficiently loads a large magneto-optical trap with more than 10^10 atoms in one second, which is an ideal starting point for degenerate quantum gases experiments.

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