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

Abstract

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.

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• A Quantum Approach to News Verification from the Perspective of a News Aggregator
• A distributed and parallel $(k,n)$ QSS scheme with verification capability
• A novel $2$ \& $3$ player scheme for Quantum Direct Communication
• A Novel Scalable Quantum Protocol for the Dining Cryptographers Problem