Transport of launched cold atoms with a laser guide and pulsed magnetic fields
arXiv:physics/0610027 · doi:10.1088/1367-2630/8/12/309
Abstract
We propose the novel combination of a laser guide and magnetic lens to transport a cold atomic cloud. We have modelled the loading and guiding of a launched cloud of cold atoms with the optical dipole force. We discuss the optimum strategy for loading typically 30% of the atoms from a MOT and guiding them vertically through 22cm. However, although the atoms are tightly confined transversely, thermal expansion in the propagation direction still results in a density loss of two orders of magnitude. By combining the laser guide with a single impulse from a magnetic lens we show one can actually increase the density of the guided atoms by a factor of 10.
arXiv comment18 pages 11 figures. To appear in New J. Phys. Original version modified to include referee's improvements
References in corpus (11)
- Transport of Bose-Einstein Condensates with Optical Tweezers
- Relativistic many-body calculations of electric-dipole matrix elements, lifetimes and polarizabilities in rubidium
- Measurement of the interaction strength in a Bose-Fermi mixture with 87Rb and 40K
- Optics with an Atom Laser Beam
- An adaptive inelastic magnetic mirror for Bose-Einstein condensates
- An atom mirror etched from a hard drive
- Transport of Atom Packets in a Train of Ioffe-Pritchard Traps
- Adaptive reflection and focusing of Bose-Einstein condensates
- Single-impulse magnetic focusing of launched cold atoms
- Guiding of cold atoms by a red-detuned laser beam of moderate power
- Double-impulse magnetic focusing of launched cold atoms