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 …

Single-hole physics in GaAs/AlGaAs double quantum dot system with strong spin–orbit interaction

S Studenikin, M Korkusinski, A Bogan… - Semiconductor …, 2021 - iopscience.iop.org
There is rapidly expanding interest in exploiting the spin of valence-band holes rather than
conduction-band electrons for spin qubit semiconductor circuits composed of coupled …

Spin–orbit interaction enabled high-fidelity two-qubit gates

J Qi, ZH Liu, H Xu - New Journal of Physics, 2024 - iopscience.iop.org
We study the implications of spin–orbit interaction (SOI) for two-qubit gates (TQGs) in
semiconductor spin qubit platforms. SOI renders the exchange interaction governing qubit …

Single and double hole quantum dots in strained Ge/SiGe quantum wells

WJ Hardy, CT Harris, YH Su, Y Chuang… - …, 2019 - iopscience.iop.org
Even as today's most prominent spin-based qubit technologies are maturing in terms of
capability and sophistication, there is growing interest in exploring alternate material …

High-resolution RHEED analysis of dynamics of low-temperature superstructure transitions in Ge/Si (001) epitaxial system

VV Dirko, KA Lozovoy, AP Kokhanenko… - …, 2021 - iopscience.iop.org
In this paper, we analyze superstructural transitions during epitaxial growth of two-
dimensional layers and the formation of quantum dots by the Stranski–Krastanov …

Two-band description of the strong 'spin'-orbit coupled one-dimensional hole gas in a cylindrical Ge nanowire

R Li, XY Qi - Journal of Physics: Condensed Matter, 2023 - iopscience.iop.org
The low-energy effective Hamiltonian of the strong'spin'-orbit coupled one-dimensional hole
gas in a cylindrical Ge nanowire in the presence of a strong magnetic field is studied both …

Low-energy hole subband dispersions in a cylindrical Ge nanowire: the effects of the nanowire growth direction

R Li, ZQ Li - Journal of Physics: Condensed Matter, 2023 - iopscience.iop.org
Low-energy hole subband dispersions in a cylindrical Ge nanowire: the effects of the
nanowire growth direction - IOPscience Skip to content IOP Science home Accessibility …

Searching strong 'spin'-orbit coupled one-dimensional hole gas in strong magnetic fields

R Li - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
We show that a strong'spin'-orbit coupled one-dimensional hole gas is achievable via
applying a strong magnetic field to the original two-fold degenerate (spin degeneracy) hole …

Recent progress in undoped group-IV heterostructures for quantum technologies

CT Tai, JY Li - Materials for Quantum Technology, 2024 - iopscience.iop.org
Silicon has been a core material for digital computing owing to its high mobility, stability
oxide interface, mature manufacturing technologies for more than half a century. While …

Materials science issues related to the fabrication of highly doped junctions by laser annealing of Group IV semiconductors

R Duffy, E Napolitani, F Cristiano - Laser Annealing Processes in …, 2021 - Elsevier
This chapter presents a review of the most relevant experimental results demonstrating the
ability of nanosecond laser annealing to achieve dopant activation well above the solid …