304 citations · 1.5k across the 30 of their papers we have counts for
31 papers
Driving Exchange Interaction in Spin Qubits with Quasi-Zero Pulses
Julian D. Teske, Remy L. Delva, Shobhan Kulshreshtha +6
The implementation of high-fidelity quantum gates for spin qubits requires accurate control of exchange interactions between electrons confined in quantum dots, but pulse distortio…
Valley Splitting Correlations Across a Silicon Quantum Well Containing Germanium
Jonathan C. Marcks, Emily Eagen, Emma C. Brann +12
Quantum dots in SiGe/Si/SiGe heterostructures host coherent electron spin qubits, which are promising for future quantum computers. The silicon quantum well hosts near-degenerate e…
Operating two exchange-only qubits in parallel
Mateusz T. Mądzik, Florian Luthi, Gian Giacomo Guerreschi +38
Semiconductors are among the most promising platforms to implement large-scale quantum computers, as advanced manufacturing techniques allow fabrication of large quantum dot arrays…
Short two-qubit pulse sequences for exchange-only spin qubits in 2D layouts
Jason D. Chadwick, Gian Giacomo Guerreschi, Florian Luthi +9
Exchange-only (EO) spin qubits in quantum dots offer an expansive design landscape for architecting scalable device layouts. The study of two-EO-qubit operations, which involve six…
12-spin-qubit arrays fabricated on a 300 mm semiconductor manufacturing line
Hubert C. George, Mateusz T. Mądzik, Eric M. Henry +29
Intels efforts to build a practical quantum computer are focused on developing a scalable spin-qubit platform leveraging industrial high-volume semiconductor manufacturing expertis…
Fast quantum gates for exchange-only qubits using simultaneous exchange pulses
Irina Heinz, Felix Borjans, Matthew J. Curry +6
The benefit of exchange-only qubits compared to other spin qubit types is the universal control using only voltage controlled exchange interactions between neighboring spins. As a…
Probing single electrons across 300 mm spin qubit wafers
Samuel Neyens, Otto K. Zietz, Thomas F. Watson +27
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 qub…
Manufacturing high-Q superconducting α-tantalum resonators on silicon wafers
D. P. Lozano, M. Mongillo, X. Piao +19
The performance of state-of-the-art superconducting quantum devices is currently limited by microwave dielectric losses at different surfaces and interfaces. α-tantalum is a superc…
Modelling semiconductor spin qubits and their charge noise environment for quantum gate fidelity estimation
M. Mohamed El Kordy Shehata, George Simion, Ruoyu Li +7
The spin of an electron confined in semiconductor quantum dots is currently a promising candidate for quantum bit (qubit) implementations. Taking advantage of existing CMOS integra…
Path toward manufacturable superconducting qubits with relaxation times exceeding 0.1 ms
J. Verjauw, R. Acharya, J. Van Damme +11
As the superconducting qubit platform matures towards ever-larger scales in the race towards a practical quantum computer, limitations due to qubit inhomogeneity through lack of pr…
Uniform Spin Qubit Devices in an All-Silicon 300 mm Integrated Process
N. I. Dumoulin Stuyck, R. Li, C. Godfrin +12
Larger arrays of electron spin qubits require radical improvements in fabrication and device uniformity. Here we demonstrate excellent qubit device uniformity and tunability from 3…
Low dephasing and robust micromagnet designs for silicon spin qubits
N. I. Dumoulin Stuyck, F. A. Mohiyaddin, R. Li +3
Using micromagnets to enable electron spin manipulation in silicon qubits has emerged as a very popular method, enabling single-qubit gate fidelities larger than 99:9%. However, th…
High mobility SiMOSFETs fabricated in a full 300mm CMOS process
Timothy N. Camenzind, Asser Elsayed, Fahd A. Mohiyaddin +7
The quality of the semiconductor-barrier interface plays a pivotal role in the demonstration of high quality reproducible quantum dots for quantum information processing. In this w…
A flexible 300 mm integrated Si MOS platform for electron- and hole-spin qubits exploration
R. Li, N. I. Dumoulin Stuyck, S. Kubicek +12
We report on a flexible 300 mm process that optimally combines optical and electron beam lithography to fabricate silicon spin qubits. It enables on-the-fly layout design modificat…
Investigation of microwave loss induced by oxide regrowth in high-Q Nb resonators
J. Verjauw, A. Potočnik, M. Mongillo +16
The coherence of state-of-the-art superconducting qubit devices is predominantly limited by two-level-system defects, found primarily at amorphous interface layers. Reducing microw…
Millikelvin temperature cryo-CMOS multiplexer for scalable quantum device characterisation
Anton Potočnik, Steven Brebels, Jeroen Verjauw +11
Quantum computers based on solid state qubits have been a subject of rapid development in recent years. In current Noisy Intermediate-Scale Quantum (NISQ) technology, each quantum…
Exchange coupling in a linear chain of three quantum-dot spin qubits in silicon
Kok Wai Chan, Harshad Sahasrabudhe, Wister Huang +12
Quantum gates between spin qubits can be implemented leveraging the natural Heisenberg exchange interaction between two electrons in contact with each other. This interaction is co…
Quantum Computing Circuits and Devices
Travis S. Humble, Himanshu Thapliyal, Edgard Munoz-Coreas +2
The development of quantum computing technologies builds on the unique features of quantum physics while borrowing familiar principles from the design of conventional devices. We i…
Quantum Accelerators for High-Performance Computing Systems
Keith A. Britt, Fahd A. Mohiyaddin, Travis S. Humble
We define some of the programming and system-level challenges facing the application of quantum processing to high-performance computing. Alongside barriers to physical integration…
Robust electric dipole transition at microwave frequencies for nuclear spin qubits in silicon
Guilherme Tosi, Fahd A. Mohiyaddin, Stefanie Tenberg +2
The nuclear spin state of a phosphorus donor (P) in isotopically enriched silicon-28 is an excellent host to store quantum information in the solid state. The spin's insensi…
A single-atom quantum memory in silicon
S. Freer, S. Simmons, A. Laucht +10
Long coherence times and fast gate operations are desirable but often conflicting requirements for physical qubits. This conflict can be resolved by resorting to fast qubits for op…
A Computational Workflow for Designing Silicon Donor Qubits
Travis S. Humble, M. Nance Ericson, Jacek Jakowski +6
Developing devices that can reliably and accurately demonstrate the principles of superposition and entanglement is an on-going challenge for the quantum computing community. Model…
Strain-induced spin resonance shifts in silicon devices
J. J. Pla, A. Bienfait, G. Pica +8
In spin-based quantum information processing devices, the presence of control and detection circuitry can change the local environment of a spin by introducing strain and electric…
A Dressed Spin Qubit in Silicon
Arne Laucht, Rachpon Kalra, Stephanie Simmons +10
Coherent dressing of a quantum two-level system provides access to a new quantum system with improved properties - a different and easily tuneable level splitting, faster control,…