Materials challenges and opportunities for quantum computing hardware

NP De Leon, KM Itoh, D Kim, KK Mehta, TE Northup… - Science, 2021 - science.org
BACKGROUND The past two decades have seen intense efforts aimed at building quantum
computing hardware with the potential to solve problems that are intractable on classical …

The germanium quantum information route

G Scappucci, C Kloeffel, FA Zwanenburg… - Nature Reviews …, 2021 - nature.com
In the effort to develop disruptive quantum technologies, germanium is emerging as a
versatile material to realize devices capable of encoding, processing and transmitting …

Quantum dot arrays in silicon and germanium

WIL Lawrie, HGJ Eenink, NW Hendrickx… - Applied Physics …, 2020 - pubs.aip.org
Electrons and holes confined in quantum dots define excellent building blocks for quantum
emergence, simulation, and computation. Silicon and germanium are compatible with …

Hard superconducting gap in germanium

A Tosato, V Levajac, JY Wang, CJ Boor… - Communications …, 2023 - nature.com
The co-integration of spin, superconducting, and topological systems is emerging as an
exciting pathway for scalable and high-fidelity quantum information technology. High …

Majorana bound states in semiconducting nanostructures

K Laubscher, J Klinovaja - Journal of Applied Physics, 2021 - pubs.aip.org
In this Tutorial, we give a pedagogical introduction to Majorana bound states (MBSs) arising
in semiconducting nanostructures. We start by briefly reviewing the well-known Kitaev chain …

Monolithic and single-crystalline aluminum–silicon heterostructures

L Wind, R Böckle, M Sistani… - … Applied Materials & …, 2022 - ACS Publications
Overcoming the difficulty in the precise definition of the metal phase of metal–Si
heterostructures is among the key prerequisites to enable reproducible next-generation …

Composition Dependent Electrical Transport in Si1−xGex Nanosheets with Monolithic Single‐Elementary Al Contacts

L Wind, M Sistani, R Böckle, J Smoliner, L Vukŭsić… - Small, 2022 - Wiley Online Library
Si1− xGex is a key material in modern complementary metal‐oxide‐semiconductor and
bipolar devices. However, despite considerable efforts in metal‐silicide and‐germanide …

Enhancement of proximity-induced superconductivity in a planar Ge hole gas

K Aggarwal, A Hofmann, D Jirovec, I Prieto… - Physical Review …, 2021 - APS
Hole gases in planar germanium can have high mobilities in combination with strong spin-
orbit interaction and electrically tunable g factors, and are therefore emerging as a promising …

Coherent control of a few-channel hole type gatemon qubit

H Zheng, LY Cheung, N Sangwan, A Kononov… - Nano Letters, 2024 - ACS Publications
Gatemon qubits are the electrically tunable cousins of superconducting transmon qubits. In
this work, we demonstrate the full coherent control of a gatemon qubit based on hole carriers …

Majorana bound states with chiral magnetic textures

U Güngördü, AA Kovalev - Journal of Applied Physics, 2022 - pubs.aip.org
The aim of this Tutorial is to give a pedagogical introduction into realizations of Majorana
fermions, usually termed as Majorana bound states (MBSs), in condensed matter systems …