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 …

Phase-driving hole spin qubits

S Bosco, S Geyer, LC Camenzind, RS Eggli, A Fuhrer… - Physical Review Letters, 2023 - APS
The spin-orbit interaction in spin qubits enables spin-flip transitions, resulting in Rabi
oscillations when an external microwave field is resonant with the qubit frequency. Here, we …

High-fidelity two-qubit gates of hybrid superconducting-semiconducting singlet-triplet qubits

M Spethmann, S Bosco, A Hofmann, J Klinovaja… - Physical Review B, 2024 - APS
Hybrid systems comprising superconducting and semiconducting materials are promising
architectures for quantum computing. Superconductors induce long-range interactions …

Hole spin qubits in thin curved quantum wells

S Bosco, D Loss - Physical Review Applied, 2022 - APS
Hole spin qubits are frontrunner platforms for scalable quantum computers because of their
large spin-orbit interaction that enables ultrafast all-electric qubit control at low power. The …

Determination of spin-orbit interaction in semiconductor nanostructures via nonlinear transport

RMA Dantas, HF Legg, S Bosco, D Loss, J Klinovaja - Physical Review B, 2023 - APS
We investigate nonlinear transport signatures stemming from linear and cubic spin-orbit
interactions in one-and two-dimensional systems. The analytical zero-temperature response …

Electrical operation of hole spin qubits in planar MOS silicon quantum dots

Z Wang, A Sarkar, SD Liles, A Saraiva, AS Dzurak… - Physical Review B, 2024 - APS
Silicon hole quantum dots have been the subject of considerable attention thanks to their
strong spin-orbit coupling enabling electrical control, a feature that has been demonstrated …

Microscopic analysis of proximity-induced superconductivity and metallization effects in superconductor-germanium hole nanowires

C Adelsberger, HF Legg, D Loss, J Klinovaja - Physical Review B, 2023 - APS
Low-dimensional germanium hole devices are promising systems with many potential
applications such as hole spin qubits, Andreev spin qubits, and Josephson junctions, and …

Majorana zero modes in gate-defined germanium hole nanowires

K Laubscher, JD Sau, S Das Sarma - Physical Review B, 2024 - APS
We theoretically study gate-defined one-dimensional channels in planar Ge hole gases as a
potential platform for non-Abelian Majorana zero modes. We model the valence band holes …

Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects

K Laubscher, JD Sau, S Das Sarma - Physical Review B, 2024 - APS
It was recently suggested that proximitized gate-defined Ge hole nanowires could serve as
an alternative materials platform for the realization of topological Majorana zero modes …

High-Fidelity Spin Qubit Shuttling via Large Spin-Orbit Interactions

S Bosco, J Zou, D Loss - PRX Quantum, 2024 - APS
Shuttling spins with high fidelity is a key requirement to scale up semiconducting quantum
computers, enabling qubit entanglement over large distances and favoring the integration of …