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 qubits in practice

A Chatterjee, P Stevenson, S De Franceschi… - Nature Reviews …, 2021 - nature.com
In the past decade, semiconducting qubits have made great strides in overcoming
decoherence, improving the prospects for scalability and have become one of the leading …

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 …

Precision tomography of a three-qubit donor quantum processor in silicon

MT Mądzik, S Asaad, A Youssry, B Joecker… - Nature, 2022 - nature.com
Nuclear spins were among the first physical platforms to be considered for quantum
information processing,, because of their exceptional quantum coherence and atomic-scale …

Quantum computer based on color centers in diamond

S Pezzagna, J Meijer - Applied Physics Reviews, 2021 - pubs.aip.org
Artificial atoms like the nitrogen vacancy (NV) centers in diamond enable the realization of
fully functional qubits in a solid at room temperature. The functionalities of all the parts …

A quantum-dot spin qubit with coherence limited by charge noise and fidelity higher than 99.9%

J Yoneda, K Takeda, T Otsuka, T Nakajima… - Nature …, 2018 - nature.com
The isolation of qubits from noise sources, such as surrounding nuclear spins and spin–
electric susceptibility,,–, has enabled extensions of quantum coherence times in recent …

Noisy intermediate-scale quantum computers

B Cheng, XH Deng, X Gu, Y He, G Hu, P Huang, J Li… - Frontiers of …, 2023 - Springer
Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

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 …

A two-qubit gate between phosphorus donor electrons in silicon

Y He, SK Gorman, D Keith, L Kranz, JG Keizer… - Nature, 2019 - nature.com
Electron spin qubits formed by atoms in silicon have large (tens of millielectronvolts) orbital
energies and weak spin–orbit coupling, giving rise to isolated electron spin ground states …

Review of performance metrics of spin qubits in gated semiconducting nanostructures

P Stano, D Loss - Nature Reviews Physics, 2022 - nature.com
Abstract This Technical Review collects values of selected performance characteristics of
semiconductor spin qubits defined in electrically controlled nanostructures. The …