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Microscopic magnetic-field imaging: Bose–Einstein condensates

Today's magnetic-field sensors 1 are not capable of making measurements with both high spatial resolution and good field sensitivity. For example, magnetic force microscopy 2 allows the investigation of magnetic structures with a spatial resolution in the nanometre range, but with low sensitivi...

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Bibliographic Details
Published in:Nature (London) 2005-05, Vol.435 (7041), p.440-440
Main Authors: Wildermuth, Stephan, Hofferberth, Sebastian, Lesanovsky, Igor, Haller, Elmar, Andersson, L. Mauritz, Groth, Sönke, Bar-Joseph, Israel, Krüger, Peter, Schmiedmayer, Jörg
Format: Article
Language:English
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Summary:Today's magnetic-field sensors 1 are not capable of making measurements with both high spatial resolution and good field sensitivity. For example, magnetic force microscopy 2 allows the investigation of magnetic structures with a spatial resolution in the nanometre range, but with low sensitivity, whereas SQUIDs 3 and atomic magnetometers 4 enable extremely sensitive magnetic-field measurements to be made, but at low resolution. Here we use one-dimensional Bose–Einstein condensates in a microscopic field-imaging technique that combines high spatial resolution (within 3 micrometres) with high field sensitivity (300 picotesla).
ISSN:0028-0836
1476-4687
DOI:10.1038/435440a