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UID:UW-Physics-Event-3740
DTSTART:20150827T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T110650Z
LAST-MODIFIED:20150826T154649Z
LOCATION:5310 Chamberlin Hall
SUMMARY:The quantum dot hybrid qubit - prospects for two-qubit gates\,
  R. G. Herb Condensed Matter Seminar\, Sebastian Mehl
DESCRIPTION:The quantum dot hybrid qubit is a three-electron double qu
 antum dot\, where its operation point makes it either a spin qubit or 
 a charge qubit. The recent advances on high fidelity single-qubit cont
 rol [1] require now inter-qubit entangling gates to make this system a
  useful architecture for quantum computation. I present two approaches
  for such two-qubit gates that use either the fast transfers of electr
 ons between quantum dots [2] or weak inter-qubit couplings at an optim
 al operation point [3]. Both approaches require state of the art manip
 ulation techniques\, and they can be tuned to high fidelities in the r
 ight parameter regimes. I also point out alternative approaches to rea
 lize high-fidelity two-qubit gates for hybrid qubits. <br>
\n<br>
\n[1
 ] see\, e.g.\, D. Kim et al.\, arXiv:1502.03156<br>
\n<br>
\n[2] S. Me
 hl\, Phys. Rev. B 91\, 035430 (2015)<br>
\n<br>
\n[3] S. Mehl\, arXiv:
 1507.03425
URL:https://www.physics.wisc.edu/events/?id=3740
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