As we’re developing large-scale quantum systems, we’re building densely connected circuit boards specially designed for high frequency operation in a cryogenic environment. Your task will be to use microwave measurements and simulation to validate the performance.

In large-scale systems, stray magnetic fields can affect entire arrays of qubits simultaneously and create correlated errors. Your task will be to use RF simulation tools to optimize the performance of magnetic screening by using magnetic and superconducting materials.

The heart of the qubit is formed by the Josephson junction, a narrow constriction where flowing Cooper pairs give rise to the nonlinear, loss-free inductance that enables our qubits. Creating such junctions reliably is key to large-scale devices. Your task will be to set up the electronics, programming, and methodology to ensure performance in arrays of Josephson junctions.