543 citations · 5.4k across the 62 of their papers we have counts for
9 papers · 1 filter
Enhancement of Proximity Induced Superconductivity in a Planar Ge Hole Gas
Kushagra Aggarwal, Andrea Hofmann, Daniel Jirovec +9
Hole gases in planar germanium can have high mobilities in combination with strong spin-orbit interaction and electrically tunable g-factors, and are therefore emerging as a promis…
CMOS-based cryogenic control of silicon quantum circuits
Xiao Xue, Bishnu Patra, Jeroen P. G. van Dijk +21
The most promising quantum algorithms require quantum processors hosting millions of quantum bits when targeting practical applications. A major challenge towards large-scale quant…
A four-qubit germanium quantum processor
N. W. Hendrickx, W. I. L. Lawrie, M. Russ +6
The prospect of building quantum circuits using advanced semiconductor manufacturing positions quantum dots as an attractive platform for quantum information processing. Extensive…
Low percolation density and charge noise with holes in germanium
M. Lodari, N. W. Hendrickx, W. I. L. Lawrie +5
We engineer planar Ge/SiGe heterostructures for low disorder and quiet hole quantum dot operation by positioning the strained Ge channel 55~nm below the semiconductor/dielectric in…
Spin relaxation benchmarks and individual qubit addressability for holes in quantum dots
W. I. L. Lawrie, N. W. Hendrickx, F. van Riggelen +5
We investigate hole spin relaxation in the single- and multi-hole regime in a 2x2 germanium quantum dot array. We use radiofrequency (rf) charge sensing and observe Pauli Spin-Bloc…
Effect of quantum Hall edge strips on valley splitting in silicon quantum wells
Brian Paquelet Wuetz, Merritt P. Losert, Alberto Tosato +10
We determine the energy splitting of the conduction-band valleys in two-dimensional electrons confined to low-disorder Si quantum wells. We probe the valley splitting dependence on…
Vanishing Zeeman energy in a two-dimensional hole gas
Patrick Del Vecchio, Mario Lodari, Amir Sammak +2
A clear signature of Zeeman split states crossing is observed in Landau fan diagram of strained germanium two-dimensional hole gas. The underlying mechanisms are discussed based on…
On-chip Integration of Si/SiGe-based Quantum Dots and Switched-capacitor Circuits
Y. Xu, F. K. Unseld, A. Corna +9
Solid-state qubits integrated on semiconductor substrates currently require at least one wire from every qubit to the control electronics, leading to a so-called wiring bottleneck…
On-chip microwave filters for high-impedance resonators with gate-defined quantum dots
Patrick Harvey-Collard, Guoji Zheng, Jurgen Dijkema +4
Circuit quantum electrodynamics (QED) employs superconducting microwave resonators as quantum buses. In circuit QED with semiconductor quantum-dot-based qubits, increasing the reso…