Adaptive Quantum Blockchain Protocols for Trustless Consensus in Post-Classical Networks

AQBCP is an Adaptive Quantum Byzantine Consensus Protocol that allows for trustless, scalable consensus in post-classical quantum blockchain systems. AQBCP has the capability of using hybrid quantum/classical methods (including dynamic pruning and quantum routing) to improve the reliability of its network and also improve how well it performs. AQBCP will have more than 50% BFT - which is greater than most classical algorithms - and can adapt to any changes in the network topological structure or the conditions of the quantum channels it uses. The analytical and simulation data shows AQBCP converges at a rate of O(log(n)), provides information theoretic security from classical and quantum enabled attacks and has better performance metrics for throughput and fault tolerance when run on current NISQ devices. The benchmarking of AQBCP with other post-quantum and quantum-classical protocols provides evidence that AQBCP is the best option and sets a base for future quantum secure distributed ledgers.

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