Semiconductor spin qubits

G Burkard, TD Ladd, A Pan, JM Nichol, JR Petta - Reviews of Modern Physics, 2023 - APS
The spin degree of freedom of an electron or a nucleus is one of the most basic properties of
nature and functions as an excellent qubit, as it provides a natural two-level system that is …

Semiconductor quantum computation

X Zhang, HO Li, G Cao, M Xiao, GC Guo… - National Science …, 2019 - academic.oup.com
Semiconductors, a significant type of material in the information era, are becoming more and
more powerful in the field of quantum information. In recent decades, semiconductor …

Quantum logic with spin qubits crossing the surface code threshold

X Xue, M Russ, N Samkharadze, B Undseth… - Nature, 2022 - nature.com
High-fidelity control of quantum bits is paramount for the reliable execution of quantum
algorithms and for achieving fault tolerance—the ability to correct errors faster than they …

Universal control of a six-qubit quantum processor in silicon

SGJ Philips, MT Mądzik, SV Amitonov, SL de Snoo… - Nature, 2022 - nature.com
Future quantum computers capable of solving relevant problems will require a large number
of qubits that can be operated reliably. However, the requirements of having a large qubit …

Fast universal quantum gate above the fault-tolerance threshold in silicon

A Noiri, K Takeda, T Nakajima, T Kobayashi… - Nature, 2022 - nature.com
Fault-tolerant quantum computers that can solve hard problems rely on quantum error
correction. One of the most promising error correction codes is the surface code, which …

Two-qubit silicon quantum processor with operation fidelity exceeding 99%

AR Mills, CR Guinn, MJ Gullans, AJ Sigillito… - Science …, 2022 - science.org
Silicon spin qubits satisfy the necessary criteria for quantum information processing.
However, a demonstration of high-fidelity state preparation and readout combined with high …

A four-qubit germanium quantum processor

NW Hendrickx, WIL Lawrie, M Russ, F van Riggelen… - Nature, 2021 - nature.com
The prospect of building quantum circuits 1, 2 using advanced semiconductor manufacturing
makes quantum dots an attractive platform for quantum information processing 3, 4 …

Resonantly driven CNOT gate for electron spins

DM Zajac, AJ Sigillito, M Russ, F Borjans, JM Taylor… - Science, 2018 - science.org
Single-qubit rotations and two-qubit CNOT operations are crucial ingredients for universal
quantum computing. Although high-fidelity single-qubit operations have been achieved …

Fast two-qubit logic with holes in germanium

NW Hendrickx, DP Franke, A Sammak, G Scappucci… - Nature, 2020 - nature.com
Universal quantum information processing requires the execution of single-qubit and two-
qubit logic. Across all qubit realizations, spin qubits in quantum dots have great promise to …

Design and integration of single-qubit rotations and two-qubit gates in silicon above one Kelvin

L Petit, M Russ, GHGJ Eenink, WIL Lawrie… - Communications …, 2022 - nature.com
Spin qubits in quantum dots define an attractive platform for quantum information because of
their compatibility with semiconductor manufacturing, their long coherence times, and the …