Long range transport of ultra cold atoms in a far-detuned 1D optical lattice

Abstract

We present a novel method to transport ultra cold atoms in a focused optical lattice over macroscopic distances of many Rayleigh ranges. With this method ultra cold atoms were transported over 5 cm in 250 ms without significant atom loss or heating. By translating the interference pattern together with the beam geometry the trap parameters are maintained over the full transport range. Thus, the presented method is well suited for tightly focused optical lattices that have sufficient trap depth only close to the focus. Tight focusing is usually required for far-detuned optical traps or traps that require high laser intensity for other reasons. The transport time is short and thus compatible with the operation of an optical lattice clock in which atoms are probed in a well designed environment spatially separated from the preparation and detection region.

14 pages, 6 figures

References in corpus (8)

• Measurement of the Temperature Dependence of the Casimir-Polder Force
• Fast atomic transport without vibrational heating
• The absolute frequency of the 87Sr optical clock transition
• Coherence properties and quantum state transportation in an optical conveyor belt
• Optimal transport of ultracold atoms in the non-adiabatic regime
• Optimization of segmented linear Paul traps and transport of stored particles
• Transporting, splitting and merging of atomic ensembles in a chip trap
• Trapping of Rb atoms by ac electric fields

Cited by in corpus (1)

• High accuracy correction of blackbody radiation shift in an optical lattice clock