Bose-Einstein condensates: microscopic magnetic-field imaging.
Today's magnetic-field sensors are not capable of making measurements with both high spatial resolution and good field sensitivity. For example, magnetic force microscopy allows the investigation of magnetic structures with a spatial resolution in the nanometre range, but with low sensitivity, whereas SQUIDs and atomic magnetometers 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).
Wildermuth
Stephan
S
Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany.
Hofferberth
Sebastian
S
Lesanovsky
Igor
I
Haller
Elmar
E
Andersson
L Mauritz
LM
Groth
Sönke
S
Bar-Joseph
Israel
I
Krüger
Peter
P
Schmiedmayer
Jörg
J