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Preserving electron spin coherence in solids by optimal dynamical decoupling

Author

Listed:
  • Jiangfeng Du

    (University of Science and Technology of China, Hefei, Anhui 230026, China)

  • Xing Rong

    (University of Science and Technology of China, Hefei, Anhui 230026, China)

  • Nan Zhao

    (The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China)

  • Ya Wang

    (University of Science and Technology of China, Hefei, Anhui 230026, China)

  • Jiahui Yang

    (University of Science and Technology of China, Hefei, Anhui 230026, China)

  • R. B. Liu

    (The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China)

Abstract

Quantum computing: cutting out the noise If electron spins in solid materials are to be exploited in quantum computers, there is a need to minimize the quantum 'noise' that inevitably accompanies the interaction of the spins with their environment. Experiments in single crystals of malonic acid undergoing pulsed electron paramagnetic resonance now show how this can be achieved. The use of external pulses to induce the electron spins to 'flip' an optimal number of times causes their noisy interaction with the environment to be averaged towards zero, and the timescale over which spin coherence is maintained is markedly increased — from 0.04 to 30 microseconds in the system studied.

Suggested Citation

  • Jiangfeng Du & Xing Rong & Nan Zhao & Ya Wang & Jiahui Yang & R. B. Liu, 2009. "Preserving electron spin coherence in solids by optimal dynamical decoupling," Nature, Nature, vol. 461(7268), pages 1265-1268, October.
    • Handle: RePEc:nat:nature:v:461:y:2009:i:7268:d:10.1038_nature08470
    DOI: 10.1038/nature08470
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    Cited by:

    1. Ruotian Gong & Guanghui He & Xingyu Gao & Peng Ju & Zhongyuan Liu & Bingtian Ye & Erik A. Henriksen & Tongcang Li & Chong Zu, 2023. "Coherent dynamics of strongly interacting electronic spin defects in hexagonal boron nitride," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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