5 papers
Progress Towards a Capacitively Mediated CNOT Between Two Charge Qubits in Si/SiGe
E. R. MacQuarrie, Samuel F. Neyens, J. P. Dodson +8
Fast operations, an easily tunable Hamiltonian, and a straightforward two-qubit interaction make charge qubits a useful tool for benchmarking device performance and exploring two-q…
The effect of external electric fields on silicon with superconducting gallium nano-precipitates
Brandur Thorgrimsson, Thomas McJunkin, E. R. MacQuarrie +2
Motivated by potential transformative applications of nanoelectronic circuits that incorporate superconducting elements, and by the advantages of integrating these elements in a si…
Auto-tuning of double dot devices in situ with machine learning
Justyna P. Zwolak, Thomas McJunkin, Sandesh S. Kalantre +7
The current practice of manually tuning quantum dots (QDs) for qubit operation is a relatively time-consuming procedure that is inherently impractical for scaling up and applicatio…
Measurements of capacitive coupling within a quadruple quantum dot array
Samuel F. Neyens, E. R. MacQuarrie, J. P. Dodson +9
We present measurements of the capacitive coupling energy and the inter-dot capacitances in a linear quadruple quantum dot array in undoped Si/SiGe. With the device tuned to a regi…
Engineering electron-phonon coupling of quantum defects to a semi-confocal acoustic resonator
Huiyao Chen, Noah F. Opondo, Boyang Jiang +4
Diamond-based microelectromechanical systems (MEMS) enable direct coupling between the quantum states of nitrogen-vacancy (NV) centers and the phonon modes of a mechanical resonato…