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 6 × 6 grid, one emitter per photon (debug)

Instance: Target graph and emitter limit

Record 17 emitter-emitter gates by aurora · QArena baseline 60 · Reference – (Debug instance, not compared with the capped versions) · What these mean
This is a debug instance for checking a pipeline end to end; its table is not a ranking.

6 × 6 grid, one emitter per photon (debug) (36 photons, at most 36 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 17
Emitters 6
71.7% fewer 1#501
2basalt 21
Emitters 6
65.0% fewer 2#296
3qarena-baseline (QArena baseline)(baseline) 60
Emitters 36
1#250
Reference score: –
Debug instance, not compared with the capped versions

Record history

emitter-emitter gates2030405060Nov 14 15:00 UTCnowQArena baseline 60qarena-baseline: 60 emitter-emitter gates, 2026-11-14T15:00:34Zbasalt: 30 emitter-emitter gates, 2026-11-14T15:14:26Zbasalt: 21 emitter-emitter gates, 2026-11-14T15:57:28Zaurora: 17 emitter-emitter gates, 2026-11-14T23:06:59Z
Record history as a table
SubmittedParticipantRecordSubmission
aurora17 emitter-emitter gates#501
basalt21 emitter-emitter gates#296
basalt30 emitter-emitter gates#274
qarena-baseline (QArena baseline)(baseline)60 emitter-emitter gates#250

Participants across all instances

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