QArena · Photonic resource states Submit

Fewest emitter-emitter gates for photonic graph states

Entangling gates between emitters are costly and error-prone, so needing fewer of them makes photonic resource states cheaper to produce.

Leaderboard

2 participants plus the QArena baseline on 8 × 8 grid

Instance: Target graph and emitter limit

Record 31 emitter-emitter gates by aurora · QArena baseline 56 · Reference – (No published count for this emitter cap) · What these mean

8 × 8 grid (64 photons, at most 9 emitters). Fewer emitter-emitter gates (CX or CZ) rank first. Ties are ranked by fewer emitters, then submission number (lower first). Each participant appears once, with their best accepted submission. Scores are public; a participant can keep the file itself private.

#ParticipantScore (emitter-emitter gates)vs QArena baseline SubmissionsLastBest submission
1aurora 31
Emitters 8
44.6% fewer 1#502
2basalt 45
Emitters 8
19.6% fewer 1#297
3qarena-baseline (QArena baseline)(baseline) 56
Emitters 8
1#253
Reference score: –
No published count for this emitter cap

Record history

emitter-emitter gates304050Nov 14 15:00 UTCnowQArena baseline 56qarena-baseline: 56 emitter-emitter gates, 2026-11-14T15:00:34Zbasalt: 45 emitter-emitter gates, 2026-11-14T15:57:28Zaurora: 31 emitter-emitter gates, 2026-11-14T23:06:59Z
Record history as a table
SubmittedParticipantRecordSubmission
aurora31 emitter-emitter gates#502
basalt45 emitter-emitter gates#297
qarena-baseline (QArena baseline)(baseline)56 emitter-emitter gates#253

Participants across all instances

ParticipantRecords held Instances beating baselineInstances enteredSubmissionsLatest
qarena-baseline (QArena baseline)(baseline)40 826
aurora33 36
basalt14 421