Quantum Protocol for Decision Making and Verifying Truthfulness among N-quantum Parties: Solution and Extension of the Quantum Coin Flipping Game

11/03/2022

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by   Kazuki Ikeda, et al.

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We devised a protocol that allows two parties, who may malfunction or intentionally convey incorrect information in communication through a quantum channel, to verify each other's measurements and agree on each other's results. This has particular relevance in a modified version of the quantum coin flipping game where the possibility of the players cheating is now removed. Furthermore, the analysis is extended to N-parties communicating with each other, where we propose multiple solutions for the verification of each player's measurement. The results in the N-party scenario could have particular relevance for the implementation of future quantum networks, where verification of quantum information is a necessity.