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SUMMARY:Quantum computing with error prone components joined by a 'noisy n
 etwork' - Simon Benjamin (University of Oxford)
DTSTART:20130213T140000Z
DTEND:20130213T153000Z
UID:TALK43364@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:A scalable quantum computer could be built by networking toget
 her many simple processor cells\, thus avoiding the need to create a singl
 e complex structure. The difficulty is that realistic quantum links are ve
 ry error prone. Here we describe an architectural approach that absorbs co
 mmunication errors through a topological encoding. Given a realistically n
 oisy network (~10% error rate) we find that intra-cell error rates for ini
 tialisation\, state manipulation and measurement can simultaneously exceed
  0.82% before the protocol fails. This level of fidelity may prove to be a
 chievable in several laboratory systems\, and moreover there is scope for 
 further raising the threshold by optimising the theoretical scheme to a gi
 ven experimental context
LOCATION:Rutherford building\, Seminar Room B
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