76 citations · 232 across the 9 of their papers we have counts for
9 papers
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…
Coupling a Ge nuclear spin to an electrostatically defined quantum dot
Paul Steinacker, Gauri Goenka, Rocky Yue Su +17
Single nuclear spins in silicon are a promising resource for quantum technologies due to their long coherence times and excellent control fidelities. Qubits and qudits have been en…
Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields
Irene Fernández de Fuentes, Tim Botzem, Mark A. I. Johnson +11
Efficient scaling and flexible control are key aspects of useful quantum computing hardware. Spins in semiconductors combine quantum information processing with electrons, holes or…
An electrically-driven single-atom `flip-flop' qubit
Rostyslav Savytskyy, Tim Botzem, Irene Fernandez de Fuentes +9
The spins of atoms and atom-like systems are among the most coherent objects in which to store quantum information. However, the need to address them using oscillating magnetic fie…
Measurement of back-action from electron spins in a gate defined GaAs double quantum dot coupled to a mesoscopic nuclear spin bath
Patrick Bethke, Robert P. G. McNeil, Julian Ritzmann +4
Decoherence of a quantum system arising from its interaction with an environment is a key concept for understanding the transition between the quantum and classical world as well a…
Closed-loop control of a GaAs-based singlet-triplet spin qubit with 99.5% gate fidelity and low leakage
Pascal Cerfontaine, Tim Botzem, Julian Ritzmann +6
Semiconductor spin qubits have recently seen major advances in coherence time and control fidelities, leading to a single-qubit performance that is on par with other leading qubit…