Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Materials and Methods
  • Supplementary Text
  • Fig. S1. Quantum processor.
  • Fig. S2. Complete wiring diagram of electronic components inside and outside the 3He/4He dilution refrigerator (Leiden Cryogenics CF-CS81).
  • Fig. S3. Study of data-qubit coherence and phase accrual during ancilla measurement.
  • Fig. S4. Quantum circuit for Bell-state idling experiments under dynamical decoupling.
  • Fig. S5. Postselected fractions for the “no error” conditioning in Figs. 2 and 4.
  • Fig. S6. Generating entanglement by sequential ZZ and XX parity measurements and PFU.
  • Fig. S7. ROCs for mitigation of data-qubit and ancilla leakage during interleaved ZZ and XX checks.
  • Fig. S8. Comparison of experimental data and no-leakage modeling of the repeated parity check experiments of Figs. 2 and 4.
  • Fig. S9. Leakage mitigation for the repeated parity check experiments as a function of the chosen threshold.
  • Fig. S10. Leakage mitigation for the simple, two-state HMMs for repeated parity check experiments as a function of the chosen threshold.
  • Fig. S11. ROCs for leakage mitigation as in fig. S7 but using simple two-state HMMs.
  • Table S1. Measured parameters of the three-transmon device.
  • References (4551)

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