Linking quantum discord with Bayesian game theory

• URL: http://arxiv.org/abs/2407.21730v1
• Date: Wed, 31 Jul 2024 16:32:47 GMT
• Title: Linking quantum discord with Bayesian game theory
• Authors: Adam Lowe,
• Abstract summary: A recently proposed quantum discord witness offers an experimentally accessible set-up which allows the quantum discord to be witnessed through a non-linear combination of correlation functions. It is shown that there is a direct link between the expected payoff in Bayesian game theory and the previously proposed quantum discord witness by uniting these two concepts through the established CHSH game.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Witnessing quantum correlation in real, practical experimental set-ups is a key focus for the development of near-future quantum technologies. Whilst there are several experimental protocols for witnessing entanglement, detecting quantum discord remains far more elusive. A recently proposed quantum discord witness offers an experimentally accessible set-up which allows the quantum discord to be witnessed through a non-linear combination of correlation functions. Interestingly, the experimental set-up can be mapped to Bayesian game theory allowing for an extended generalisation of the proposed witness. Subsequently, it is shown that there is a direct link between the expected payoff in Bayesian game theory and the previously proposed quantum discord witness by uniting these two concepts through the established CHSH game.

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