English

Is the essence of a quantum game captured completely in the original classical game?

Quantum Physics 2021-09-03 v3 Other Condensed Matter Computer Science and Game Theory Mathematical Physics math.MP

Abstract

S. J. van Enk and R. Pike in PRA 66, 024306 (2002) argue that the equilibrium solution to a quantum game isn't unique but is already present in the classical game itself. In this work, we contest this assertion by showing that a random strategy in a particular quantum (Hawk-Dove) game is unique to the quantum game. In other words, one cannot obtain the equilibrium solution of the quantum Hawk-Dove game in the classical Hawk-Dove game. Moreover, we provide an analytical solution to the quantum 2×22\times2 strategic form Hawk-Dove game using randomly mixed strategies. The random strategy which we describe is Pareto optimal with their payoff classically unobtainable. We compare quantum strategies to correlated strategies and find that correlated strategies in the quantum Hawk-Dove game or quantum Prisoner's dilemma yield the Nash equilibrium solution.

Keywords

Cite

@article{arxiv.1701.08573,
  title  = {Is the essence of a quantum game captured completely in the original classical game?},
  author = {Muhammed Jabir T and Nilesh Vyas and Colin Benjamin},
  journal= {arXiv preprint arXiv:1701.08573},
  year   = {2021}
}

Comments

11 Pages, accepted for publication in Physica A: Statistical Mechanics and its Applications (2021)