Superconducting and Silicon Spin Qubit Hardware
This community develops the physical hardware for quantum computing, specifically focusing on superconducting circuits and semiconductor spin qubits to create stable, controllable quantum bits.
The work centers on two primary platforms: superconducting qubits built from niobium thin films, Josephson junctions, and microwave resonators, and silicon-based spin qubits utilizing quantum dots in silicon, germanium, and silicon-germanium heterostructures. Key research areas include improving qubit coherence times, reducing noise in magnetic field control, and designing scalable arrays of qubits with high gate fidelity. The literature frequently addresses the fabrication of thin films, the design of superconducting cavities, and the integration of control electronics for these cryogenic devices.
The community is most heavily concentrated in niobium research, representing 4.7% of all niobium papers tracked, with 3,334 papers in this group. Silicon contributes the second largest share of the community's output, accounting for 2,061 papers, which is 0.6% of all silicon research.
There are 13,816 papers in this community, published primarily in Applied Physics Letters, Physical Review B, and IEEE Transactions on Applied Superconductivity.
Recent work includes industry-compatible silicon spin-qubit unit cells, millisecond lifetimes in 2D transmon qubits, and robust control of spin qubit arrays in germanium.