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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3743
DTSTART:20160414T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260316T000321Z
LAST-MODIFIED:20160408T153637Z
LOCATION:5310 Chamberlin Hall
SUMMARY:Dynamically corrected entangling gates for spin qubits \, R. G
 . Herb Condensed Matter Seminar\, Jason Kestner\, UMBC
DESCRIPTION:Spin qubits have recently demonstrated high fidelity singl
 e-qubit rotations and relatively long coherence times in a variety of 
 experiments.  High fidelity two-qubit entangling operations are the ne
 xt challenge on the path towards scalable universal quantum computatio
 n.  In this talk\, we present recent theoretical results for dynamical
  decoupling protocols that protect the generation of entanglement.  Fo
 r capacitive coupling\, we show that access to a particular set of hig
 h-fidelity single-qubit gates is sufficient to eliminate a large porti
 on of the coherent error coming from low-frequency hyperfine and charg
 e noise during the basic two-qubit operation\, bringing CNOT gate fide
 lity up to the level of single-qubit gate fidelities.  We will also di
 scuss how to produce the basic entangling operation and the necessary 
 single-qubit operations\, as well as extensions to other coupling type
 s. 
URL:https://www.physics.wisc.edu/events/?id=3743
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