Garcia, IL and Darquie, B and Curtis, EA and Sinclair, CDJ and Hinds, EA (2010) Experiments on a videotape atom chip: fragmentation and transport studies. NEW J PHYS , 12 , Article 093017. 10.1088/1367-2630/12/9/093017.
This paper reports on experiments with ultracold rubidium atoms confined in microscopic magnetic traps created using a piece of periodically magnetized videotape mounted on an atom chip. The roughness of the confining potential is studied with atomic clouds at temperatures of a few mu K and at distances between 30 and 80 mu m from the videotape-chip surface. The inhomogeneities in the magnetic field created by the magnetized videotape close to the central region of the chip are characterized in this way. In addition, we demonstrate a novel transport mechanism whereby we convey cold atoms confined in arrays of videotape magnetic micro-traps over distances as large as similar to 1 cm parallel to the chip surface. This conveying mechanism enables us to survey the surface of the chip and observe potential-roughness effects across different regions.
|Title:||Experiments on a videotape atom chip: fragmentation and transport studies|
|Open access status:||An open access publication|
|Keywords:||BOSE-EINSTEIN CONDENSATION, PERMANENT MAGNETIC-FILM, CONTROLLING COLD ATOMS, ULTRACOLD ATOMS, NEUTRAL ATOMS, MICRO-TRAPS, FLOPPY DISK, QUANTUM, OPTICS, FIELD|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Institute of Neurology > Molecular Neuroscience|
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