Atom fiber for omnidirectional guiding of cold neutral atoms.
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 microm) at various atom-surface distances (35-450 microm). An extension of the scheme for the guiding of Bose-Einstein condensates is outlined.
Luo
X
X
Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany.
Krüger
P
P
Brugger
K
K
Wildermuth
S
S
Gimpel
H
H
Klein
M W
MW
Groth
S
S
Folman
R
R
Bar-Joseph
I
I
Schmiedmayer
J
J