Materials for Silicon Quantum Dots and their Impact on Electron Spin Qubits

2021/07/28 by André Saraiva, Saraiva, Andre, Wee Han Lim +9 · 2 citations
Computer Science · Engineering · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph) #Quantum and electron transport phenomena #Quantum-Dot Cellular Automata #Semiconductor materials and devices

paper · pdf · doi:10.48550/arxiv.2107.13664

openalex publication_date 2021/07/28 · openalex created_date 2022/07/25 · openalex updated_date 2026/08/01

Abstract

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 correcting inevitable errors in quantum operations. In this scenario, electron spins in gate-defined silicon quantum dots are strong contenders for encoding qubits, leveraging the microelectronics industry know-how for fabricating densely populated chips with nanoscale electrodes. The sophisticated material combinations used in commercially manufactured transistors, however, will have a very different impact on the fragile qubits. We review here some key properties of the materials that have a direct impact on qubit performance and variability.

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