ArticleNature nanotechnology2020
Nuclear spin quantum register in an optically active semiconductor quantum dot.
Article in Nature nanotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
6 citing papers in PubMed.
- Coherent control of quantum-dot spins with cyclic optical transitions.Nature communications · 2026Article
- Spin Qubits Candidate in Transition-Metal-Ion doped Halide Double Perovskites.Nature communications · 2026Article
- Storing quantum coherence in a quantum dot nuclear spin ensemble for over 100 milliseconds.Nature communications · 2025Article
- Nuclear spin diffusion in the central spin system of a GaAs/AlGaAs quantum dot.Nature communications · 2023Article
- Harnessing many-body spin environment for long coherence storage and high-fidelity single-shot qubit readout.Nature communications · 2022Article
- Phonon-assisted relaxation between triplet and singlet states in a self-assembled double quantum dot.Scientific reports · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Epitaxial quantum dots (QDs) have long been identified as promising charge spin qubits offering an efficient interface to quantum light and advanced semiconductor nanofabrication technologies. However, charge spin coherence is limited by interaction with the nanoscale ensemble of atomic nuclear spins, which is particularly problematic in strained self-assembled dots. Here, we use strain-free GaAs/AlGaAs QDs, demonstrating a fully functioning two-qubit quantum register using the nanoscale ensemble of arsenic quadrupolar nuclear spins as its hardware. Tailored radio-frequency pulses allow quantum state storage for up to 20 ms, and are used for few-microsecond single-qubit and two-qubit control gates with fidelities exceeding 97%. Combining long coherence and high-fidelity control with optical initialization and readout, we implement benchmark quantum computations such as Grover's search and the Deutsch-Jozsa algorithm. Our results identify QD nuclei as a potential quantum information resource, which can complement charge spins and light particles in future QD circuits.
Identifiers
32989238What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.