Atom Chip for Transporting and Merging Magnetically Trapped Atom Clouds

Details Atom Chip for Transporting and Merging Magnetically Trapped Atom Clouds Atom Chip for Transporting and Merging Magnetically Trapped Atom Clouds

2000-08-25

arxiv.org/abs/quant-ph/0008111v1

Physics

Quantum Physics

4 pages, 7 figures, submitted to Phys. Rev. Lett

Scientific paper

We demonstrate an integrated magnetic ``atom chip'' which transports cold trapped atoms near a surface with very high positioning accuracy. Time-dependent currents in a lithographic conductor pattern create a moving chain of magnetic potential wells; atoms are transported in these wells while remaining confined in all three dimensions. We achieve fluxes up to 10^6 /s with a negligible heating rate. An extension of this ``atomic conveyor belt'' allows the merging of magnetically trapped atom clouds by unification of two Ioffe-Pritchard potentials. Under suitable conditions, the clouds merge without loss of phase space density. We demonstrate this unification process experimentally.

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