4 papers
Microwave Engineering for Semiconductor Quantum Dots in a cQED Architecture
Nathan Holman, J. P. Dodson, L. F. Edge +4
We develop an engineered microwave environment for coupling high Q superconducting resonators to quantum dots using a multilayer fabrication stack for the dot control wiring. Analy…
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…
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…