Results · The price of perfection

Perfect play in a finite nonlocal game requires infinite entanglement entropy

In plain wordsA finite win-or-lose game that quantum players can win perfectly only by sharing infinitely much entanglement, not just infinitely many dimensions.

The result

As the paper states it, in briefA finite two-player game with classical inputs, classical outputs and a win-or-lose rule is won perfectly on a tensor product of Hilbert spaces, and every perfect strategy contains, under local isometries, the same pure state with Catalan-number Schmidt multiplicities and infinite entropy. A finite compiler turns rational linear identities among synchronized projections into winning conditions.

How this was checked

Blind checks
Every theorem checked independently by a model from another developer
Blind audits
One blind audit
Fix-checks
A targeted check.
Independent computation
Two independent exact evaluators each for the Bell table and the game
Lean
In progress; no Lean claim is made for this version.
Peer review
Not yet.

Every check here is internal. How we check results.

Label checked .

Novelty and credit

Novelty
New, with named precedent: it strengthens infinite dimension (Coladangelo and Stark; the game Γ) to infinite entanglement entropy, builds on Mančinska’s flagged magic-square game, credited, and cites Chen and Zhao’s graph-projection encoding. The compiler is, to our knowledge, new as stated. No absolute priority claim.

Versionsone, each with its own DOI

Every archived version, newest first. Dates are Zenodo publication dates.
VersionDateDOINotes
1.0.010.5281/zenodo.23902656 PDF hosted here.

Paper, code and links

PDF

papers/infinite-entropy-v1.0.0.pdf, version 1.0.0, 503,733 bytes, 24 pages.

SHA-256 2e532c39c116038fb021453f6188fc85a86aadbfce157a3eff06bf3e2eaa6b24

Corrections

None so far.

All corrections, and what counts as one.

Cite

@misc{douglas2026infiniteentropy,
  author  = {Douglas, Seth and Mghirbi, Nidhal},
  title   = {Perfect play in a finite nonlocal game requires infinite entanglement entropy},
  year    = {2026},
  version = {1.0.0},
  doi     = {10.5281/zenodo.23902656},
  url     = {https://doi.org/10.5281/zenodo.23902656}
}

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