509 citations · 1.1k across the 10 of their papers we have counts for
10 papers
Cross-architecture Tuning of Silicon and SiGe-based Quantum Devices Using Machine Learning
B. Severin, D. T. Lennon, L. C. Camenzind +20
The potential of Si and SiGe-based devices for the scaling of quantum circuits is tainted by device variability. Each device needs to be tuned to operation conditions. We give a ke…
Strong spin-orbit interaction and -factor renormalization of hole spins in Ge/Si nanowire quantum dots
F. N. M. Froning, M. J. Rančić, B. Hetényi +8
The spin-orbit interaction lies at the heart of quantum computation with spin qubits, research on topologically non-trivial states, and various applications in spintronics. Hole sp…
Ultrafast Hole Spin Qubit with Gate-Tunable Spin-Orbit Switch
F. N. M. Froning, L. C. Camenzind, O. A. H. van der Molen +4
A key challenge in quantum computation is the implementation of fast and local qubit control while simultaneously maintaining coherence. Qubits based on hole spins offer, through t…
Single, double, and triple quantum dots in Ge/Si nanowires
F. N. M. Froning, M. K. Rehmann, J. Ridderbos +6
We report highly tunable control of holes in Ge/Si core/shell nanowires (NWs). We demonstrate the ability to create single quantum dots (QDs) of various sizes, with low hole occupa…
Fast Long-Distance Control of Spin Qubits by Photon Assisted Cotunneling
Peter Stano, Jelena Klinovaja, Floris R. Braakman +2
We investigate theoretically the long-distance coupling and spin exchange in an array of quantum dot spin qubits in the presence of microwaves. We find that photon assisted cotunne…
Electrical control of a long-lived spin qubit in a Si/SiGe quantum dot
E. Kawakami, P. Scarlino, D. R. Ward +7
Nanofabricated quantum bits permit large-scale integration but usually suffer from short coherence times due to interactions with their solid-state environment. The outstanding cha…
Dynamics of spin-flip photon-assisted tunneling
F. R. Braakman, J. Danon, L. R. Schreiber +2
We present time-resolved measurements of spin-flip photon-assisted tunneling and spin-flip relaxation in a doubly occupied double quantum dot. The photon-assisted excitation rate a…
Photon- and phonon-assisted tunneling in the three-dimensional charge stability diagram of a triple quantum dot array
Floris R. Braakman, Pierre Barthelemy, Christian Reichl +2
We report both photon- and phonon-assisted tunneling transitions in a linear array of three quantum dots, which can only be understood by considering the full three-dimensionality…
Long-range coherent coupling in a quantum dot array
Floris R. Braakman, Pierre Barthelemy, Christian Reichl +2
Controlling long-range quantum correlations is central to quantum computation and simulation. In quantum dot arrays, experiments so far rely on nearest-neighbour couplings only, an…
Coupling molecular spin states by photon-assisted tunneling
L. R. Schreiber, F. R. Braakman, T. Meunier +5
Artificial molecules containing just one or two electrons provide a powerful platform for studies of orbital and spin quantum dynamics in nanoscale devices. A well-known example of…