Table 1 Average single-qubit Clifford-gate fidelities FC for QT and QB in each selective broadcasting scheme, extracted from the decay of the corresponding ground-state population

From: Independent, extensible control of same-frequency superconducting qubits by selective broadcasting

Scheme

Q T

Q B

 

FC

F C T 1

FC

F C T 1

Sequential

0.9962 (4)

0.9971

0.9972 (5)

0.9978

Compiled

0.9971 (4)

0.9978

0.9978 (5)

0.9982

5-primitives

0.9947 (5)

0.9962

0.9964 (5)

0.9970

  1. All fidelities surpass the surface-code fault-tolerance threshold and closely track the fidelities F C T 1 expected for T1-relaxation-limited performance.