Extended Data Fig. 3: Estimated isolated error contributions to the total infidelity.

Fidelities for the non-Clifford CNOT-protocol obtained with numerical simulations. The orange column shows the fidelity for the system with realistic experimental error rates from Extended Data Tab. 2. The blue columns show the results for the reduced error model where all the errors were set to zero except for one with the corresponding fidelity indicated on top of the columns. The non-zero error source varies between blue columns and is specified below. Decoherence corresponds to the dephasing of idling qubits while gates are carried out on different sets of qubits, 2-qubit to the physical 2-qubit MS-gate error rate, mid-circ meas to the idling of data qubits during the measurement of auxiliary qubits and single-qubit to all single-qubit noise processes, including faulty initializations, measurements as well as single-qubit gates.