Liu Yuan-Ting, Wang Kai, Liu Yuan-Dong, Wang Dong-Sheng
CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China.
School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
Entropy (Basel). 2023 Aug 9;25(8):1187. doi: 10.3390/e25081187.
The existence of universal quantum computers has been theoretically well established. However, building up a real quantum computer system not only relies on the theory of universality, but also needs methods to satisfy requirements on other features, such as programmability, modularity, scalability, etc. To this end, here we study the recently proposed model of quantum von Neumann architecture by putting it in a practical and broader setting, namely, the hierarchical design of a computer system. We analyze the structures of quantum CPU and quantum control units and draw their connections with computational advantages. We also point out that a recent demonstration of our model would require less than 20 qubits.
通用量子计算机的存在在理论上已得到充分证实。然而，构建一个真正的量子计算机系统不仅依赖于通用性理论，还需要满足其他特性要求的方法，如可编程性、模块化、可扩展性等。为此，我们在此通过将最近提出的量子冯·诺依曼架构模型置于一个实际且更广泛的背景下进行研究，即计算机系统的分层设计。我们分析了量子中央处理器和量子控制单元的结构，并得出它们与计算优势的联系。我们还指出，近期对我们模型的演示所需的量子比特数将少于20个。
