Towards Scalable Bosonic Quantum Error Correction

• URL: http://arxiv.org/abs/2002.11008v3
• Date: Mon, 1 Jun 2020 12:40:53 GMT
• Title: Towards Scalable Bosonic Quantum Error Correction
• Authors: Barbara M. Terhal, Jonathan Conrad, Christophe Vuillot
• Abstract summary: We present some new results on decoding repeated GKP error using finitely-squeezed GKP ancilla qubits. We discuss circuit-QED ways to realize CZ gates between GKP qubits and we discuss different scenario's for using GKP and regular qubits as building blocks in a scalable superconducting surface code architecture.
• Score: 1.6328866317851185
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 scenario's for using GKP and regular qubits as building blocks in a scalable superconducting surface code architecture.

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