Silicon-Germanium Quantum Devices and Laser-Structured Surfaces
This community develops semiconductor devices for quantum computing and high-frequency electronics, alongside methods for creating micro-scale surface textures using laser pulses.
The work centers on silicon-germanium heterojunctions, spin qubits, and quantum dots, with a strong focus on BiCMOS technology and power amplifiers. A significant portion of the research involves laser-induced periodic surface structures, femtosecond laser processing, and the crystallization of amorphous silicon and germanium thin films. These materials are engineered for applications in quantum processors, high-speed transistors, and optical components, with specific attention to device fabrication, surface morphology, and electronic transport properties.
The largest share of the community's output is found in germanium research, accounting for 24.5% of all germanium research, and 6,714 papers here. This is the element with the highest paper count within this group.
The community comprises 16,067 papers, published primarily in the Journal of Applied Physics, Applied Physics Letters, and Physical Review.
Recent work includes the development of 10-spin qubit arrays in germanium, an 11-qubit atom processor in silicon, and the fabrication of laser-induced periodic structures on polycarbonate.
Papers behind this description
- Silicon‐Germanium Heterojunction Bipolar Transistors — 75th Anniversary of the Transistor, 2023 — doi:10.1002/9781394202478.ch18
- Universal control of a six-qubit quantum processor in silicon — Nature, 2022 — doi:10.1038/s41586-022-05117-x
- Ubiquitous Superconducting Diode Effect in Superconductor Thin Films — Physical Review Letters, 2023 — doi:10.1103/physrevlett.131.027001
- Fast universal quantum gate above the fault-tolerance threshold in silicon — Nature, 2022 — doi:10.1038/s41586-021-04182-y
- Two-qubit silicon quantum processor with operation fidelity exceeding 99% — Science Advances, 2022 — doi:10.1126/sciadv.abn5130
- A four-qubit germanium quantum processor — Nature, 2021 — doi:10.1038/s41586-021-03332-6
- Precision tomography of a three-qubit donor quantum processor in silicon — Nature, 2022 — doi:10.1038/s41586-021-04292-7
- Quantum error correction with silicon spin qubits — Nature, 2022 — doi:10.1038/s41586-022-04986-6
- Maxwell Meets Marangoni—A Review of Theories on Laser‐Induced Periodic Surface Structures — Laser & Photonics Reviews, 2020 — doi:10.1002/lpor.202000215
- The SpinBus architecture for scaling spin qubits with electron shuttling — Nature Communications, 2024 — doi:10.1038/s41467-024-49182-4
- Universal logic with encoded spin qubits in silicon — Nature, 2023 — doi:10.1038/s41586-023-05777-3
- Sweet-spot operation of a germanium hole spin qubit with highly anisotropic noise sensitivity — Nature Materials, 2024 — doi:10.1038/s41563-024-01857-5
- Robust and localised control of a 10-spin qubit array in germanium — Nature Communications, 2025 — doi:10.1038/s41467-025-65577-3
- Materials for quantum technologies: A roadmap for spin and topology — Applied Physics Reviews, 2025 — doi:10.1063/5.0294020
- Single‐Pulse Nanomorphology Governs Laser‐Induced Periodic Surface Structure Formation on Metals — Laser & Photonics Reviews, 2025 — doi:10.1002/lpor.202500694
- The origins of noise in the Zeeman splitting of spin qubits in natural-silicon devices — npj Quantum Information, 2025 — doi:10.1038/s41534-025-01150-6
- Telecom-wavelength quantum teleportation using frequency-converted photons from remote quantum dots — Nature Communications, 2025 — doi:10.1038/s41467-025-65912-8
- A quantum–classical approach band model of indirect optical transitions in semiconductor materials — Optical and Quantum Electronics, 2025 — doi:10.1007/s11082-025-08595-1