Improving the implementation of quantum blockchain based on hypergraphs

【Author】 Orts, Francisco; Paulavicius, Remigijus; Filatovas, Ernestas

【Source】QUANTUM INFORMATION PROCESSING

【影响因子】1.965

【Abstract】In recent years, there has been a growing interest in the potential of quantum computing for enhancing the security and efficiency of blockchain technology. While quantum blockchain protocols offer improved security over their classical counterparts, implementing such protocols on present-day quantum computers poses difficulties due to the limited number of qubits and quantum gates and the significant effects of noise. In this paper, we propose a set of improvements for implementing a quantum blockchain protocol based on hypergraphs that aim to reduce the required resources and operations and increase noise tolerance. Specifically, we focus on enhancing the state-of-the-art quantum circuits that underpin the quantum blockchain by optimizing the so-called T-count and T-depth, which represent the number of quantum gates and the circuit depth, respectively. Our proposed implementations also leverage proven error detection and correction codes to improve noise tolerance. To evaluate the effectiveness of our proposed improvements, we tested them on real quantum devices. Our results demonstrate a significant reduction in the T-count and T-depth. Overall, our proposed improvements provide a promising direction for the practical implementation of quantum blockchain protocols on current quantum computers and lay a foundation for further research in this area.

【Keywords】Quantum blockchain; Hypergraph states; Quantum circuit; Quantum computing; Blockchain

【发表时间】2023 SEP 1

【收录时间】2023-09-27

【文献类型】实验仿真

【主题类别】

区块链技术-协同技术-量子区块链