Qubit ZooSummary
Reports Clavina, a modular time-bin photonic processor combining a fully programmable Gaussian linear-optical unit with addressable inline-squeezing and measurement-induced Kerr modules. The experiment verified cluster-state correlations across 8,000 time bins, demonstrated a low-photon-number Kerr interaction, and generated approximate one-dimensional optical GKP states quasi-deterministically with real-time feedforward. The reported GKP state was not yet a full two-dimensional fault-tolerant grid state.
Key Results
- Operated the GKP-generation experiment at 250 kHz and produced approximately 2,000 optical GKP states per second.
- Used near-deterministic photon-number-state injection, cat-state breeding, homodyne feedforward, and real-time displacement.
- Demonstrated a one-dimensional approximate GKP state; lower loss and higher squeezing are still required for practical error correction.
Links
- DOI: 10.1038/s41566-026-01962-8
- arXiv: 2602.06544
Verification
The DOI title and first author were checked through Crossref, and the complete author order was checked against the arXiv v1 PDF title page on 2026-10-30.