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A Quantum Factory Cultivates CCZ States Directly
A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.
Summary
A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.
The authors report circuit-level simulations with joint infidelity down to 4.10×10^-7 at 8.89 percent acceptance under their stated neutral-atom error model. Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation.
Why it matters
A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.
Limits and context
- Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation.
Key claims
A simulated protocol couples tricycle and bicycle codes, transfers two prepared logical CCZ states and uses decoder postselection to trade acceptance for fidelity.
Qualification: Their estimated spacetime cost beats a T-state-to-CCZ route at the smallest factory's target; this remains a simulated protocol, not hardware operation.
Evidence: source-2026-10-15-017
Sources
- arXiv preprint 2610.20591, original v1arXiv / submitting research authors · primary research
Corrections
: Publication note: This October 15 edition was prepared before its scheduled 9:00 AM America/Detroit reveal, but publication was delayed by a production build failure. The original reporting and image-generation timestamps are preserved.