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A clip-on Zeeman slower using toroidal permanent magnets.

S P Krzyzewski1, T G Akin1, Parshuram Dahal1

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We developed an inexpensive, power-free Zeeman slower for rubidium-85 atoms using permanent magnets. This design simplifies maintenance and achieves atom flux comparable to existing Zeeman slowers.

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Area of Science:

  • Atomic physics
  • Magnetism

Background:

  • Zeeman slowers are crucial for cooling and trapping atoms.
  • Conventional Zeeman slowers often require significant power and cooling systems.

Purpose of the Study:

  • To design and demonstrate a cost-effective, low-maintenance zero-crossing Zeeman slower for (85)Rb.
  • To utilize flexible permanent magnets for magnetic field generation.

Main Methods:

  • Theoretical modeling of magnetic field profiles using permanent magnet rings.
  • Experimental construction and testing of a prototype Zeeman slower.
  • Comparison of experimental data with theoretical simulations.

Main Results:

  • The proposed design theoretically reproduces the magnetic field of a standard zero-crossing Zeeman slower.
  • Experimental measurements confirm the feasibility of the permanent magnet-based design.
  • Simulations predict an atom flux comparable to existing Zeeman slower technologies.

Conclusions:

  • Flexible permanent magnet rings offer a viable and economical alternative for constructing Zeeman slowers.
  • The design facilitates easy integration and maintenance within vacuum systems.
  • Further improvements are possible based on prototype performance and simulations.