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Comment on `Quantum Games and Quantum Strategies'

Simon C. Benjamin·Patrick M. Hayden
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Abstract

In a recent paper, Eisert et al. presented a quantum mechanical generalization of Prisoner's Dilemma. They asserted that the maximally entangled game exhibits a unique Nash equilibrium which yields a pay-off equivalent to cooperative behaviour. In this comment we show that their observation is incorrect: there is no Nash equilibrium in the space of deterministic quantum strategies.

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Simon C. Benjamin, Patrick M. Hayden. 2000-03-09. Comment on `Quantum Games and Quantum Strategies'. https://doi.org/10.1103/physrevlett.87.069801

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