We discuss the scalability of superconducting quantum computers, especially in a wiring problem. The number of wiring inside a cryostat is almost proportional to the number of qubits in current wiring architectures. We introduce regularity, modularity, and hierarchy to an architecture design of superconducting quantum computers. The key to the wiring elimination is found in the quantum error correction codes having thresholds and spatial translational symmetry, i.e., the surface code. We show a superconducting-digital-logic-based architecture and introduce a stacked heterogeneous structure of the quantum module.
@article{arxiv.2106.10488,
title = {Superconducting quantum computer: a hint for building architectures},
author = {Yutaka Tabuchi and Shuhei Tamate and Shinichi Yorozu},
journal= {arXiv preprint arXiv:2106.10488},
year = {2021}
}
Comments
4 pages, presented at VLSI 2021 Circuit and Technology Symposium, JFS5-2