Volume 2 Issue 4, April 2019

Volume 2 Issue 4

Silicon qubits find the right pulse

Pulse engineering techniques can reduce error rates in silicon quantum dot spin qubits by a factor of three compared with state-of-the-art silicon devices. The schematic illustration on the cover highlights the errors (depicted as coloured stripes) accumulated over time for a 90° rotation of two single-spin qubits in a noisy environment, one using conventional square pulse control (far) and the other using optimized pulse engineering techniques (near).

See Yang et al. and News & Views by Emerson

Image: Chih-Hwan Yang. Cover Design: Allen Beattie.

Editorial

  • Editorial |

    Self-healing materials could deliver a new generation of electronic devices.

Comment & Opinion

  • Comment |

    Open collaboration based on shared facilities can accelerate the commercialization of microelectromechanical systems.

    • Kentaro Totsu
    • , Masaaki Moriyama
    •  & Masayoshi Esashi

Research Highlights

News & Views

  • News & Views |

    Electronic components and interconnects can be simultaneously synthesized and integrated through the phase-patterned growth of two-dimensional molybdenum ditelluride.

    • Wenzhuo Wu

Reviews

  • Review Article |

    This Review Article examines the development of self-healing electronic materials and devices, explores their potential applications and discusses the challenges that exist in delivering practical systems.

    • Jiheong Kang
    • , Jeffrey B.-H. Tok
    •  & Zhenan Bao

Research

  • Article |

    Pulse engineering techniques can be used to reduce the average Clifford gate error rates for silicon quantum dot spin qubits down to 0.043%, a factor of three improvement over state-of-the-art silicon devices.

    • C. H. Yang
    • , K. W. Chan
    • , R. Harper
    • , W. Huang
    • , T. Evans
    • , J. C. C. Hwang
    • , B. Hensen
    • , A. Laucht
    • , T. Tanttu
    • , F. E. Hudson
    • , S. T. Flammia
    • , K. M. Itoh
    • , A. Morello
    • , S. D. Bartlett
    •  & A. S. Dzurak
  • Article |

    Electronic components made from two-dimensional MoTe2 can be chemically synthesized and integrated in a single step, creating devices in which each component in the active layer is connected via covalent bonds.

    • Qi Zhang
    • , Xue-Feng Wang
    • , Shu-Hong Shen
    • , Qi Lu
    • , Xiaozhi Liu
    • , Haoyi Li
    • , Jingying Zheng
    • , Chu-Ping Yu
    • , Xiaoyan Zhong
    • , Lin Gu
    • , Tian-Ling Ren
    •  & Liying Jiao