English

Resolving game theoretical dilemmas with quantum states

Quantum Physics 2023-12-29 v2

Abstract

We present a new framework for creating a quantum version of a classical game, based on Fine's theorem. This theorem shows that for a given set of marginals, a system of Bell's inequalities constitutes both necessary and sufficient conditions for the existence of the corresponding joint probability distribution. Using Fine's theorem, we re-express both the player payoffs and their strategies in terms of a set of marginals, thus paving the way for the consideration of sets of marginals -- corresponding to entangled quantum states -- for which no corresponding joint probability distribution may exist. By harnessing quantum states and employing Positive Operator-Valued Measures (POVMs), we then consider particular quantum states that can potentially resolve dilemmas inherent in classical games.

Keywords

Cite

@article{arxiv.2304.03605,
  title  = {Resolving game theoretical dilemmas with quantum states},
  author = {Azhar Iqbal and James M. Chappell and Claudia Szabo and Derek Abbott},
  journal= {arXiv preprint arXiv:2304.03605},
  year   = {2023}
}

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Revised

R2 v1 2026-06-28T09:54:20.564Z