Stefan Schmid et al 2006 New J. Phys. 8 159 doi:10.1088/1367-2630/8/8/159
Stefan Schmid, Gregor Thalhammer, Klaus Winkler, Florian Lang and Johannes Hecker Denschlag
Show affiliationsPart of Focus on Cold Atoms in Optical Lattices
We study the horizontal transport of ultracold atoms over macroscopic distances of up to 20 cm with a moving 1D optical lattice. By using an optical Bessel beam to form the optical lattice, we can achieve nearly homogeneous trapping conditions over the full transport length, which is crucial in order to hold the atoms against gravity for such a wide range. Fast transport velocities of up to 6 m s−1 (corresponding to about 1100 photon recoils) and accelerations of up to 2600 m s−2 are reached. Even at high velocities the momentum of the atoms is precisely defined with an uncertainty of less than one photon recoil. This allows for construction of an atom catapult with high kinetic energy resolution, which might have applications in novel collision experiments.
Issue 8 (August 2006)
Received 30 May 2006
Published 30 August 2006
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