Scaling silicon-based quantum computing using CMOS technology

MF Gonzalez-Zalba, S De Franceschi, E Charbon… - Nature …, 2021 - nature.com
As quantum processors grow in complexity, attention is moving to the scaling prospects of
the entire quantum computing system, including the classical support hardware. Recent …

Materials for silicon quantum dots and their impact on electron spin qubits

A Saraiva, WH Lim, CH Yang, CC Escott… - Advanced Functional …, 2022 - Wiley Online Library
Quantum computers have the potential to efficiently solve problems in logistics, drug and
material design, finance, and cybersecurity. However, millions of qubits will be necessary for …

Multiplexed superconducting qubit control at millikelvin temperatures with a low-power cryo-CMOS multiplexer

R Acharya, S Brebels, A Grill, J Verjauw, T Ivanov… - Nature …, 2023 - nature.com
Large-scale superconducting quantum computers require the high-fidelity control and
readout of large numbers of qubits at millikelvin temperatures, resulting in a massive input …

A cryo-CMOS chip that integrates silicon quantum dots and multiplexed dispersive readout electronics

A Ruffino, TY Yang, J Michniewicz, Y Peng… - Nature …, 2022 - nature.com
As quantum computers grow in complexity, the technology will have to evolve from large
distributed systems to compact integrated solutions. Spin qubits in silicon quantum dots are …

Reducing charge noise in quantum dots by using thin silicon quantum wells

B Paquelet Wuetz, D Degli Esposti… - Nature …, 2023 - nature.com
Charge noise in the host semiconductor degrades the performance of spin-qubits and poses
an obstacle to control large quantum processors. However, it is challenging to engineer the …

Probing single electrons across 300-mm spin qubit wafers

S Neyens, OK Zietz, TF Watson, F Luthi, A Nethwewala… - Nature, 2024 - nature.com
Building a fault-tolerant quantum computer will require vast numbers of physical qubits. For
qubit technologies based on solid-state electronic devices,–, integrating millions of qubits in …

Atomic fluctuations lifting the energy degeneracy in Si/SiGe quantum dots

B Paquelet Wuetz, MP Losert, S Koelling… - Nature …, 2022 - nature.com
Abstract Electron spins in Si/SiGe quantum wells suffer from nearly degenerate conduction
band valleys, which compete with the spin degree of freedom in the formation of qubits …

Low disorder and high valley splitting in silicon

D Degli Esposti, LEA Stehouwer, Ö Gül… - npj Quantum …, 2024 - nature.com
The electrical characterisation of classical and quantum devices is a critical step in the
development cycle of heterogeneous material stacks for semiconductor spin qubits. In the …

SiGe quantum wells with oscillating Ge concentrations for quantum dot qubits

T McJunkin, B Harpt, Y Feng, MP Losert… - Nature …, 2022 - nature.com
Large-scale arrays of quantum-dot spin qubits in Si/SiGe quantum wells require large or
tunable energy splittings of the valley states associated with degenerate conduction band …

Scalable fault-tolerant quantum technologies with silicon color centers

S Simmons - PRX Quantum, 2024 - APS
The scaling barriers currently faced by both quantum networking and quantum computing
technologies ultimately amount to the same core challenge of distributing high-quality …