Towards scalable bosonic quantum error correction
Open accessAbstract
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.
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Such a concatenation requires entangling gates, which for GKP qudits can be realized with the same operations used for entangling GKP qubits.
“Such a concatenation requires entangling gates, which for GKP qudits can be realized with the same operations used for entangling GKP qubits20,53–55.”
From Quantum error correction of qudits beyond break-even (2025) · cites this paper as [53]
Cites
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Real-time quantum error correction beyond break-even
Sivak, V. V., Eickbusch, A., Royer, B., Singh, S., Tsioutsios, I., Ganjam, S., Miano, A., Brock, B. L., Ding, A. Z., Frunzio, L., et al. (2023) · Nature · doi:10.1038/s41586-023-05782-6 · Cited by 407 · see citing works
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Practical Quantum Error Correction with the XZZX Code and Kerr-Cat Qubits
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- Authors
- Terhal, B. M., Conrad, J., & Vuillot, C.
- Affiliations
- Forschungszentrum Jülich (DE)
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- Centre Inria de Paris (FR)
- Corresponding author
- Terhal, B M
- Conrad, J
- Vuillot, C
- Venue
- Quantum Science and Technology
- Publisher
- IOP Publishing
- Published
- 2020-07-09
- Volume
- 5
- Issue
- 4
- Pages
- 043001
- ISSN
- 2058-9565 (ISSN-L)
- OpenAlex
- W3007806070
- Cited by
- 146
- References
- 6
- Citations by year
- 2026: 16 · 2025: 31 · 2024: 29 · 2023: 25 · 2022: 14 · 2021: 27 · 2020: 4
- FWCI
- 6.97
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Quantum Science and Technology (publishedVersion, cc-by)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion)
- Research Repository (Delft University of Technology) (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion, cc-by)
- arXiv (Cornell University)
- Funders
- QuantERA (QCDA Consortium)
- H2020 European Research Council (682726)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- bosonic quantum error correction, superconducting qubits, circuit quantum electrodynamics, CZ gate, scalable quantum computing, stochastic error model
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