dorsal/arxiv
View SchemaA game-theoretic probability approach to loopholes in CHSH experiments
| Authors | Takara Nomura, Koichi Yamagata, Akio Fujiwara |
|---|---|
| Categories | |
| ArXiv ID | 2601.09339vv1 |
| URL | https://arxiv.org/abs/2601.09339 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We study the CHSH inequality from an informational, timing-sensitive viewpoint using game-theoretic probability, which avoids assuming an underlying probability space. The locality loophole and the measurement-dependence (``freedom-of-choice'') loophole are reformulated as structural constraints in a sequential hidden-variable game between Scientists and Nature. We construct a loopholes-closed game with capital processes that test (i) convergence of empirical conditional frequencies to the CHSH correlations and (ii) the absence of systematic correlations between measurement settings and Nature's hidden-variable assignments, and prove that Nature cannot satisfy both simultaneously: at least one capital process must diverge. This yields an operational winning strategy for Scientists and a game-theoretic probabilistic interpretation of experimentally observed CHSH violations.
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"abstract": "We study the CHSH inequality from an informational, timing-sensitive viewpoint using game-theoretic probability, which avoids assuming an underlying probability space. The locality loophole and the measurement-dependence (``freedom-of-choice\u0027\u0027) loophole are reformulated as structural constraints in a sequential hidden-variable game between Scientists and Nature. We construct a loopholes-closed game with capital processes that test (i) convergence of empirical conditional frequencies to the CHSH correlations and (ii) the absence of systematic correlations between measurement settings and Nature\u0027s hidden-variable assignments, and prove that Nature cannot satisfy both simultaneously: at least one capital process must diverge. This yields an operational winning strategy for Scientists and a game-theoretic probabilistic interpretation of experimentally observed CHSH violations.",
"arxiv_id": "2601.09339",
"authors": [
"Takara Nomura",
"Koichi Yamagata",
"Akio Fujiwara"
],
"categories": [
"quant-ph",
"cs.GT",
"math.PR"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "A game-theoretic probability approach to loopholes in CHSH experiments",
"url": "https://arxiv.org/abs/2601.09339",
"version": "v1"
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