Towards scalable bosonic quantum error correction

doi:10.1088/2058-9565/ab98a5

Towards scalable bosonic quantum error correction

2020-07-09

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DOI：10.1088/2058-9565/ab98a5

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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.

Keywords:

quantum error correction

superconducting qubits

bosonic codes

Towards scalable bosonic quantum error correction

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