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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3501
DTSTART:20141031T203000Z
DTEND:20141031T213000Z
DTSTAMP:20260315T233148Z
LAST-MODIFIED:20141028T124211Z
LOCATION:2241 Chamberlin Hall (coffee at 4:30 pm)
SUMMARY:The challenge of fault tolerant quantum computation\, Physics 
 Department Colloquium\, Lev Ioffe\, Rutgers University
DESCRIPTION:The classical computation is made possible by error correc
 tion that allows to completely eliminate errors produced by solid stat
 e elements. In contrast to a discrete logical state of a classical com
 puter\, its quantum analogue is described the continuous wave function
 . Nevertheless\, the ability to measure the quantum state in different
  basis allows error correction for quantum computation as well. Both c
 lassical and quantum error corrections can be implemented at a hardwar
 e level by a proper choice of the Hamiltonian. In this case\, the quan
 tum error correction is intimately related to the topological order pa
 rameter formed in the quantum systems described by these Hamiltonians.
  <br>
\n<br>
\nI discuss simplest examples of the Hamiltonians that pr
 ovide hardware error corrections by the formation of the topological o
 rder parameter and their implementation in the superconducting circuit
 s. I also show that some of these Hamiltonians allow not only the erro
 r corrections but also discrete quantum operations\, e.g. fault tolera
 nt operations. I will show the experimental data that confirm theoreti
 cal predictions. 
URL:https://www.physics.wisc.edu/events/?id=3501
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