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arXiv · quant-ph/0411012

Transporting, splitting and merging of atomic ensembles in a chip trap

P. Hommelhoff·W. Hänsel·T. Steinmetz·T. W. Hänsch·J. Reichel
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Abstract

We present a toolbox for cold atom manipulation with time-dependent magnetic fields generated by an atom chip. Wire layouts, detailed experimental procedures and results are presented for the following experiments: Use of a magnetic conveyor belt for positioning of cold atoms and Bose-Einstein condensates with a resolution of two nanometers; splitting of thermal clouds and BECs in adjustable magnetic double well potentials; controlled splitting of a cold reservoir. The devices that enable these manipulations can be combined with each other. We demonstrate this by combining reservoir splitter and conveyor belt to obtain a cold atom dispenser. We discuss the importance of these devices for quantum information processing, atom interferometry and Josephson junction physics on the chip. For all devices, absorption-image video sequences are provided to demonstrate their time-dependent behaviour.

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P. Hommelhoff, W. Hänsel, T. Steinmetz, T. W. Hänsch, J. Reichel. 2004-11-02. Transporting, splitting and merging of atomic ensembles in a chip trap. https://doi.org/10.1088/1367-2630/7/1/003

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