Towards scalable bosonic quantum error correction

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

Research output: Contribution to journalReview articleScientificpeer-review

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Abstract

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
Volume5
Issue number4
DOIs
Publication statusPublished - 2020

Keywords

  • bosonic codes
  • quantum error correction
  • superconducting qubits

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