Adjustable Microchip Ring Trap for Cold Atoms and Molecules

  title={Adjustable Microchip Ring Trap for Cold Atoms and Molecules},
  author={P. Baker and James A. Stickney and M. Squires and J. Scoville and E. Carlson and W. Buchwald and Steven M. Miller},
  journal={Physical Review A},
We describe the design and function of a circular magnetic waveguide produced from wires on a microchip for atom interferometry using de Broglie waves. The guide is a two-dimensional magnetic minimum for trapping weak-field seeking states of atoms or molecules with a magnetic dipole moment. The design consists of seven circular wires sharing a common radius. We describe the design, the time-dependent currents of the wires and show that it is possible to form a circular waveguide with adjustable… Expand

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