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The Quantum Decoder Reaches Microseconds
PRISM uses erasure locations in photonic fault-tolerance protocols and runs a distance-eight logical block on an FPGA in 6.59 microseconds.
Summary
PRISM uses erasure locations in photonic fault-tolerance protocols and runs a distance-eight logical block on an FPGA in 6.59 microseconds.
PRISM is a transformer decoder for photonic fusion-based quantum computing, where photon loss and probabilistic fusion produce known erasure locations. Across surface, color and quantum low-density parity-check codes up to distance 24, the authors report logical error rates matching integer-programming decoders while running faster, including near high erasure rates. An FPGA implementation decoded a distance-eight block in 6.59 microseconds with 1.56 microseconds amortized per logical block. The result demonstrates real-time inference on the tested protocols and hardware, not a complete fault-tolerant computer.
Why it matters
PRISM uses erasure locations in photonic fault-tolerance protocols and runs a distance-eight logical block on an FPGA in 6.59 microseconds.
Limits and context
- The result demonstrates real-time inference on the tested protocols and hardware, not a complete fault-tolerant computer.
Key claims
PRISM uses erasure locations in photonic fault-tolerance protocols and runs a distance-eight logical block on an FPGA in 6.59 microseconds.
Qualification: The result demonstrates real-time inference on the tested protocols and hardware, not a complete fault-tolerant computer.
Evidence: source-2026-11-12-013
Sources
- arXiv:2611.13630v1arXiv / Cornell University · primary research
Corrections
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