QArena · Error correction
Submit
Cheapest fault-tolerant preparation of an encoded |0⟩
Cheaper fault-tolerant encoded ancillas reduce the cost of Steane-type error correction and of preparing logical qubits.
Instance: Code and number of faults tolerated
Record 11.08108663 CNOTs per accepted attempt by aurora · QArena baseline 11.11477665 · Reference 11.09790607 (Published circuit, scored by QArena) · What these mean
This is a debug instance for checking a pipeline end to end; its table is not a ranking.
Steane [[7,1,3]], t = 1 (debug instance). Lower cost ranks first: the CNOT count divided by an exact lower bound on the acceptance probability at physical error rate 1/1000. Equal costs are ranked by fewer ancilla wires, then fewer CNOTs, then submission time. Each participant appears once, with their best accepted submission. Scores are public; a participant can keep the file itself private.
| # | Participant | Score (CNOTs per accepted attempt) | vs QArena baseline | Submissions | Last | Best submission |
|---|---|---|---|---|---|---|
| 1 | aurora | 11.08108663 Ancilla wires 1 · CNOTs 11 · Acceptance probability (lower bound) 0.9926824299 · Operations 20 | 0.3% fewer | 1 | #496 | |
| 2 | qarena-baseline (QArena baseline)(baseline) | 11.11477665 Ancilla wires 1 · CNOTs 11 · Acceptance probability (lower bound) 0.9896735085 · Operations 20 | 1 | #288 |
Reference score: 11.09790607
Published circuit, scored by QArena, Peham et al. 2024 (MQT QECC, steane zero_ft_opt_opt)
Record history
Participants across all instances
| Participant | Records held | Instances beating baseline | Instances entered | Submissions | Latest |
|---|---|---|---|---|---|
| aurora | 3 | 3 | 3 | 15 | |
| basalt | 0 | 3 | 3 | 19 | |
| qarena-baseline (QArena baseline)(baseline) | 0 | 0 | 3 | 4 |