Parametric $\mathrm{CZ}$ Gates in a Tunable Tripod Architecture with Fixed-Frequency Superconducting Qubits

arXiv:2611.09105v1 Announce Type: new Abstract: Efficient implementation of the operations required for quantum error correction in superconducting quantum computers requires high gate fidelity, adequate qubit connectivity, and selective control of interactions. Sharing a single coupler among multiple qubits can improve connectivity, but also requires accounting for its effects on qubits outside the target pair. In this work, we numerically investigate the feasibility of implementing parametric-resonance $\mathrm{CZ}$ gates in a tunable tripod structure consisting of three fixed-frequency transmon qubits connected to a single tunable coupler.