activity
20202026
most citedDeterministic Single Ion Implantation with 99.87% Confidence for Scalable Donor-Qubit Arrays in Silicon

42 citations · 81 across the 6 of their papers we have counts for

collaborators

8 papers

quant-ph2026

Dynamical Decoupling of Nonclassical States in a Biased-Noise Spin Qudit

Arjen Vaartjes, Namit Anand, Rocky Y. Su +16

Encoding quantum information in -dimensional systems (qudits) with offers appealing new directions for resource-efficient quantum computing. However, protecting the cohere…

cond-mat.mes-hall2026

Accurate noise spectroscopy using quantum sensing ensembles

Dhilan T Vallury, Nikolai Dontschuk, Alexander M Jakob +2

Noise spectroscopy with quantum sensors is a powerful tool for characterising the properties of the sensor environment and detecting critical magnetic phenomena. While replacing si…

quant-ph2025

Maximizing the nondemolition nature of a quantum measurement via an adaptive readout protocol

Arjen Vaartjes, Rocky Yue Su, Laura A. O'Neill +15

Quantum error correction (QEC) requires non-invasive measurements for fault tolerant quantum computing. Deviations from ideal quantum non-demolition (QND) measurements can disturb…

cond-mat.mes-hall2025

Automatic tuning of a donor in a silicon quantum device using machine learning

Brandon Severin, Tim Botzem, Federico Fedele +12

Donor spin qubits in silicon offer one- and two-qubit gates with fidelities beyond 99%, coherence times exceeding 30 seconds, and compatibility with industrial manufacturing method…

quant-ph2025★ 20 cited

Roadmap on Atomic-scale Semiconductor Devices

Steven R. Schofield, Andrew J. Fisher, Eran Ginossar +47

Spin states in semiconductors provide exceptionally stable and noise-resistant environments for qubits, positioning them as optimal candidates for reliable quantum computing techno…

quant-ph2024★ 7 cited

Certifying the quantumness of a nuclear spin qudit through its uniform precession

Arjen Vaartjes, Martin Nurizzo, Lin Htoo Zaw +16

Spin precession is a textbook example of dynamics of a quantum system that exactly mimics its classical counterpart. Here we challenge this view by certifying the quantumness of ex…

cond-mat.mes-hall2023★ 12 cited

Improved placement precision of implanted donor spin qubits in silicon using molecule ions

Danielle Holmes, Benjamin Wilhelm, Alexander M. Jakob +6

Donor spins in silicon-28 (Si) are among the most performant qubits in the solid state, offering record coherence times and gate fidelities above 99%. Donor spin qubits can…

cond-mat.mes-hall2020★ 42 cited

Deterministic Single Ion Implantation with 99.87% Confidence for Scalable Donor-Qubit Arrays in Silicon

Alexander M. Jakob, Simon G. Robson, Vivien Schmitt +9

The attributes of group-V-donor spins implanted in an isotopically purified Si crystal make them attractive qubits for large-scale quantum computer devices. Important featur…