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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-5288
DTSTART:20200129T190000Z
DURATION:PT1H0M0S
DTSTAMP:20260415T041028Z
LAST-MODIFIED:20200122T154655Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Results and challenges from a Helium-Neon comagnetometer with 
 SERF readout\, Atomic Physics Seminar\, William Terrano\, Princeton
DESCRIPTION:We have built a comagnetometer that compares Helium-3 and 
 Neon-21 precession frequencies using a SERF magnetometer.  Spin-exchan
 ge interactions are suppressed with a sequence of RF pulses.  I will d
 iscuss the operation of the system\, and our current sensitivity\, whi
 ch has reached 7 nHz in 2000 seconds and below 1 nHz in a day.  I will
  discuss several important experimental techniques that allowed us to 
 reach that level\, as well as some outstanding challenges and unexplai
 ned phenomena.  
URL:https://www.physics.wisc.edu/events/?id=5288
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