Atomic collider into dual-isotope magneto-optical trap

Details Atomic collider into dual-isotope magneto-optical trap Atomic collider into dual-isotope magneto-optical trap

2006-01-13

arxiv.org/abs/physics/0601097v1

Physics

Atomic Physics

8 pages, 6 figures. pdf; this paper was reported at ICONO 2005 in St.-Petersburg

Scientific paper

When two of three pairs of the Gaussian laser beams of a traditional MOT are misaligned in the racetrack configuration the effective coordinate-dependent vortex force do arise. Then an atom is accelerated by this vortex force until its velocity not balanced by the damping force. This situation may produce a stable ring of revolving atoms of a certain radius. Due to the different frequency and laser beams intensity dependences of the vortex, damping and trapping forces it is possible to equalize the radii of two orbiting groups of atoms in two-species or dual-isotope magneto-optical trap and so to arrange a continuing collider of cooled atoms with the prescribed relative velocity. A collider setup for atoms of two different types rotating with different angular velocities along the same ring-like trajectory into MOT of the conventional six-beam geometry is proposed and designed on example of two rubidium isotopes Rb85 and Rb87.

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