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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4245
DTSTART:20161027T150000Z
DTEND:20161027T160000Z
DTSTAMP:20260309T175608Z
LAST-MODIFIED:20161025T120006Z
LOCATION:5310 Chamberlin Hall 
SUMMARY:Suppression of energy relaxation in a superconducting qubit by
  the spectrum engineering\, R. G. Herb Condensed Matter Seminar\, Vlad
 imir Manucharyan\, University of Maryland
DESCRIPTION:We have designed a superconducting circuit around the flux
 onium artificial atom such that it has transitions with both very larg
 e and very small transition dipoles. A small dipole decouples the corr
 esponding transition from conventional dissipation sources (e.g. diele
 ctric loss) while the large dipole transitions couple the weak one to 
 a microwave cavity thereby allowing to read out its quantum state. By 
 tuning the circuit parameters with a magnetic flux\, we have tuned the
  frequencies and dipole moments of the transitions and achieved T1 > 0
 .5 ms. In this talk we will discuss how the multi-level spectrum of th
 e fluxonium artificial atom can be utilized for quantum information pr
 ocessing in analogy with atomic clocks. 
URL:https://www.physics.wisc.edu/events/?id=4245
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