Gatemon Benchmarking and Two-Qubit Operations

First systematic gate benchmarking and two-qubit operation in a two-nanowire-gatemon circuit.

Key Results

Randomized-benchmarking single-qubit errors below 0.7% for all tested gates, including voltage-controlled $Z$ rotations.
Coherent capacitive coupling and swap operations between two gatemons.
Estimated controlled-phase-gate fidelity of 91%.