Formation of Directed Beams from Atom Lasers

Details Formation of Directed Beams from Atom Lasers Formation of Directed Beams from Atom Lasers

2000-04-17

arxiv.org/abs/cond-mat/0004267v1

Laser Phys. 1 (2000) 64-70

Physics

Condensed Matter

1 file, 14 pages, LaTex. Invited report

Scientific paper

The problem of creating well-collimated beams of atoms escaping from a trap is studied. This problem is of high importance for the realization of atom lasers. Nonadiabatic dynamics of neutral atoms in nonuniform magnetic fields, typical of quadrupole magnetic traps, has been considered. The main result of this report is that an unusual semiconfining regime of motion is found, when atoms are confined from one side of an axis but are not confined from another side. This regime can be achieved by means of only magnetic fields. The formed atomic beam can be forwarded in arbitrary direction.

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