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Physicists exploit ultra-cold gases to measure ultra-small magnetic fields

UC Berkeley physicist Dan Stamper-Kurn and colleagues have captured a Bose Einstein condensate within a laser beam to made a device that maps magnetic fields more precisely than ever before. The magnetometer relies on the fact that the spins of atoms in the BEC precess in a magnetic field at a rate proportional to the field strength. Highly sensitive at low frequencies, the magnetometer may prove better than SQUIDs at measuring brain waves.

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Keywords: physicists, exploit, ultra-cold, gases, measure, ultra-small, magnetic, fields, physicist, ultra, cold, gase, small, field

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