We present an omnidirectional matter waveguide on an atom chip. The guide is based on a combination of two current-carrying wires and a bias field pointing perpendicular to the chip surface. Thermal atoms are guided for more than two complete turns along a 25-mm-long spiral path (with curve radii as short as 200 µm) at various atom-surface distances (35–450 µm). An extension of the scheme for the guiding of Bose–Einstein condensates is outlined.
© 2004 Optical Society of America
(020.7010) Atomic and molecular physics : Laser trapping
X. Luo, P. Krüger, K. Brugger, S. Wildermuth, H. Gimpel, M. W. Klein, S. Groth, R. Folman, I. Bar-Joseph, and J. Schmiedmayer, "Atom fiber for omnidirectional guiding of cold neutral atoms," Opt. Lett. 29, 2145-2147 (2004)