Towards scalable bosonic quantum error correction
Barbara M. Terhal, Jonathan Conrad, Christophe Vuillot
2020HZB Repository (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB))125 citationsDOIOpen Access PDF
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.
Topics & Concepts
QubitScalabilityDecoding methodsQuantum computerError detection and correctionQuantum error correctionQuantumComputer scienceCode (set theory)PhysicsQuantum mechanicsElectronic engineeringTopology (electrical circuits)AlgorithmElectrical engineeringEngineeringDatabaseSet (abstract data type)Programming languageQuantum Computing Algorithms and ArchitectureQuantum and electron transport phenomenaAdvancements in Semiconductor Devices and Circuit Design