Towards scalable bosonic quantum error correction

B. M. Terhal*, J. Conrad, C. Vuillot

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

59 Citations (Scopus)
31 Downloads (Pure)


We review some of the recent efforts in devising and engineering bosonic qubits for superconducting devices, with emphasis on the Gottesman-Kitaev-Preskill (GKP) qubit. We present some new results on decoding repeated GKP error correction using finitely-squeezed GKP ancilla qubits, exhibiting differences with previously studied stochastic error models. We discuss circuit-QED ways to realize CZ gates between GKP qubits and we discuss different scenarios for using GKP and regular qubits as building blocks in a scalable superconducting surface code architecture.

Original languageEnglish
Article number043001
Number of pages38
JournalQuantum Science and Technology
Issue number4
Publication statusPublished - 2020


  • bosonic codes
  • quantum error correction
  • superconducting qubits


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