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 …

Nanomaterials for quantum information science and engineering

A Alfieri, SB Anantharaman, H Zhang… - Advanced …, 2023 - Wiley Online Library
Quantum information science and engineering (QISE)—which entails the use of quantum
mechanical states for information processing, communications, and sensing—and the area …

Fast two-qubit logic with holes in germanium

NW Hendrickx, DP Franke, A Sammak, G Scappucci… - Nature, 2020 - nature.com
Universal quantum information processing requires the execution of single-qubit and two-
qubit logic. Across all qubit realizations, spin qubits in quantum dots have great promise to …

Gate-controlled quantum dots and superconductivity in planar germanium

NW Hendrickx, DP Franke, A Sammak… - Nature …, 2018 - nature.com
Superconductors and semiconductors are crucial platforms in the field of quantum
computing. They can be combined to hybrids, bringing together physical properties that …

Electrical operation of planar Ge hole spin qubits in an in-plane magnetic field

A Sarkar, Z Wang, M Rendell, NW Hendrickx… - Physical Review B, 2023 - APS
Hole spin qubits in group-IV semiconductors, especially Ge and Si, are actively investigated
as platforms for ultrafast electrical spin manipulation thanks to their strong spin-orbit …

Undoped strained Ge quantum well with ultrahigh mobility of two million

Z Kong, Z Li, G Cao, J Su, Y Zhang, J Liu… - … Applied Materials & …, 2023 - ACS Publications
We develop a method to fabricate an undoped Ge quantum well (QW) under a 32 nm
relaxed Si0. 2Ge0. 8 shallow barrier. The bottom barrier contains Si0. 2Ge0. 8 (650° C) and …

Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained- Quantum Well

R Moriya, K Sawano, Y Hoshi, S Masubuchi, Y Shiraki… - Physical review …, 2014 - APS
The spin-orbit interaction (SOI) of a two-dimensional hole gas in the inversion symmetric
semiconductor Ge is studied in a strained-Ge/SiGe quantum well structure. We observe …

Recent advances in hole-spin qubits

Y Fang, P Philippopoulos, D Culcer… - Materials for …, 2023 - iopscience.iop.org
In recent years, hole-spin qubits based on semiconductor quantum dots have advanced at a
rapid pace. We first review the main potential advantages of these hole-spin qubits with …

Majorana bound states in germanium Josephson junctions via phase control

M Luethi, HF Legg, K Laubscher, D Loss, J Klinovaja - Physical Review B, 2023 - APS
We consider superconductor-normal-superconductor-normal-superconductor (SNSNS)
planar Josephson junctions in hole systems with spin-orbit interaction that is cubic in …

Electrical control of the tensor of the first hole in a silicon MOS quantum dot

SD Liles, F Martins, DS Miserev, AA Kiselev… - Physical Review B, 2021 - APS
Single holes confined in semiconductor quantum dots are a promising platform for spin-qubit
technology, due to the electrical tunability of the g factor of holes. However, the underlying …