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Quantum control and process tomography of a semiconductor quantum dot hybrid qubit

Author

Listed:
  • Dohun Kim

    (University of Wisconsin-Madison)

  • Zhan Shi

    (University of Wisconsin-Madison)

  • C. B. Simmons

    (University of Wisconsin-Madison)

  • D. R. Ward

    (University of Wisconsin-Madison)

  • J. R. Prance

    (University of Wisconsin-Madison)

  • Teck Seng Koh

    (University of Wisconsin-Madison)

  • John King Gamble

    (Sandia National Laboratories)

  • D. E. Savage

    (University of Wisconsin-Madison)

  • M. G. Lagally

    (University of Wisconsin-Madison)

  • Mark Friesen

    (University of Wisconsin-Madison)

  • S. N. Coppersmith

    (University of Wisconsin-Madison)

  • Mark A. Eriksson

    (University of Wisconsin-Madison)

Abstract

A simply prepared quantum bit that is a hybrid of spin and charge enables full control on the Bloch sphere with π-rotation times of less than 100 picoseconds in two orthogonal directions; the speed arises from the charge-like characteristics, and the spin-like features result in increased quantum coherence.

Suggested Citation

  • Dohun Kim & Zhan Shi & C. B. Simmons & D. R. Ward & J. R. Prance & Teck Seng Koh & John King Gamble & D. E. Savage & M. G. Lagally & Mark Friesen & S. N. Coppersmith & Mark A. Eriksson, 2014. "Quantum control and process tomography of a semiconductor quantum dot hybrid qubit," Nature, Nature, vol. 511(7507), pages 70-74, July.
    • Handle: RePEc:nat:nature:v:511:y:2014:i:7507:d:10.1038_nature13407
    DOI: 10.1038/nature13407
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    Cited by:

    1. Wonjin Jang & Jehyun Kim & Jaemin Park & Gyeonghun Kim & Min-Kyun Cho & Hyeongyu Jang & Sangwoo Sim & Byoungwoo Kang & Hwanchul Jung & Vladimir Umansky & Dohun Kim, 2023. "Wigner-molecularization-enabled dynamic nuclear polarization," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. C. G. L. Bøttcher & S. P. Harvey & S. Fallahi & G. C. Gardner & M. J. Manfra & U. Vool & S. D. Bartlett & A. Yacoby, 2022. "Parametric longitudinal coupling between a high-impedance superconducting resonator and a semiconductor quantum dot singlet-triplet spin qubit," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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