The germanium quantum information route
In the effort to develop disruptive quantum technologies, germanium is emerging as a
versatile material to realize devices capable of encoding, processing and transmitting …
versatile material to realize devices capable of encoding, processing and transmitting …
Fast two-qubit logic with holes in germanium
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 …
qubit logic. Across all qubit realizations, spin qubits in quantum dots have great promise to …
A single-hole spin qubit
Qubits based on quantum dots have excellent prospects for scalable quantum technology
due to their compatibility with standard semiconductor manufacturing. While early research …
due to their compatibility with standard semiconductor manufacturing. While early research …
Quantum dot arrays in silicon and germanium
Electrons and holes confined in quantum dots define excellent building blocks for quantum
emergence, simulation, and computation. Silicon and germanium are compatible with …
emergence, simulation, and computation. Silicon and germanium are compatible with …
Shallow and undoped germanium quantum wells: a playground for spin and hybrid quantum technology
Buried‐channel semiconductor heterostructures are an archetype material platform for the
fabrication of gated semiconductor quantum devices. Sharp confinement potential is …
fabrication of gated semiconductor quantum devices. Sharp confinement potential is …
Hard superconducting gap in germanium
The co-integration of spin, superconducting, and topological systems is emerging as an
exciting pathway for scalable and high-fidelity quantum information technology. High …
exciting pathway for scalable and high-fidelity quantum information technology. High …
From nonreciprocal to charge-4e supercurrent in Ge-based Josephson devices with tunable harmonic content
A Leblanc, C Tangchingchai, ZS Momtaz… - Physical Review …, 2024 - APS
Hybrid superconductor (S)-semiconductor (Sm) devices bring a range of functionalities into
superconducting circuits. In particular, hybrid parity-protected qubits and Josephson diodes …
superconducting circuits. In particular, hybrid parity-protected qubits and Josephson diodes …
Lightly strained germanium quantum wells with hole mobility exceeding one million
We demonstrate that a lightly strained germanium channel ( ε//=− 0.41%) in an undoped
Ge/Si 0.1 Ge 0.9 heterostructure field effect transistor supports a two-dimensional (2D) hole …
Ge/Si 0.1 Ge 0.9 heterostructure field effect transistor supports a two-dimensional (2D) hole …
Direct Microwave Spectroscopy of Andreev Bound States in Planar Josephson Junctions
M Hinderling, SC ten Kate, M Coraiola, DZ Haxell… - PRX Quantum, 2024 - APS
We demonstrate microwave measurements of the Andreev-bound-state (ABS) spectrum in
planar Josephson junctions (JJs) defined in Ge high-mobility two-dimensional hole gases …
planar Josephson junctions (JJs) defined in Ge high-mobility two-dimensional hole gases …
Majorana bound states in germanium Josephson junctions via phase control
We consider superconductor-normal-superconductor-normal-superconductor (SNSNS)
planar Josephson junctions in hole systems with spin-orbit interaction that is cubic in …
planar Josephson junctions in hole systems with spin-orbit interaction that is cubic in …