A survey of universal quantum von Neumann architecture
Y.-T. Liu, K. Wang, Y.-D. Liu, D.-S. Wang

TL;DR
This paper surveys the quantum von Neumann architecture, emphasizing its potential for scalable, programmable quantum computers, and discusses practical design considerations and recent experimental demonstrations.
Contribution
It provides a comprehensive overview of the quantum von Neumann architecture within a hierarchical system design framework, highlighting its structure and advantages.
Findings
Quantum CPU and control unit structures analyzed
Connections between architecture and computational benefits identified
Recent demonstration requires fewer than 20 qubits
Abstract
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, 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 unit, and draw their connections with computational advantages. We also point out that a recent demonstration of our model would require less than 20 qubits.
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Quantum Information and Cryptography · Quantum-Dot Cellular Automata
