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Showing 1–2 of 2 results
Advanced filters: Author: Harry E. Dyte Clear advanced filters

  • Epitaxial quantum dots in group III-V semiconductors are promising candidates for qubits and quantum memories, but nuclear spin coherence has been limited to 1 ms range. Here the authors achieve coherence times exceeding 100 ms in GaAs quantum dots using strain engineering and dynamical decoupling.

    • Harry E. Dyte
    • Santanu Manna
    • Evgeny A. Chekhovich
    ResearchOpen Access
    Nature Communications
    Volume: 17, P: 1-9

  • Highly polarized nuclear spins can supress decoherence of electron spin qubits, but this requires near-unity polarization. Here the authors implement a protocol combining optical excitation and fast carrier tunnelling to achieve nuclear spin polarizations above 95% in GaAs quantum dots on a timescale of 1 minute.

    • Peter Millington-Hotze
    • Harry E. Dyte
    • Evgeny A. Chekhovich
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7