Atomic de Broglie waveguides and integrated atom-optics using permanent magnets

A method for creating miniature quadrupole traps for atoms is proposed. The method uses pairs of micro-fabricated dipole magnets to create a quadrupol e field for trapping atoms in two dimensions while allowing free propagatio n in the third. When the dimensions of the trap are comparable with the de Broglie wavelengths of the atoms, the device becomes an atom waveguide. In this paper we discuss the properties of the magnetic dipoles, methods for t heir manufacture and present the de Broglie wave modes of an example wavegu ide. The method can be extended to create many different atom-optical devic es on a substrate leading to the possibility of monolithic, integrated atom -optics devices.