超低電力マイクロプロセッサの実現に向けた 断熱型磁束量子パラメトロンの進展

• 竹内 尚輝

  横浜国立大学 先端科学高等研究院 国立研究開発法人科学技術振興機構 さきがけ

書誌事項

タイトル別名

• Recent Progress on Adiabatic Quantum-flux-parametron Logic for Extremely Low-power Microprocessors
• チョウテイデンリョク マイクロプロセッサ ノ ジツゲン ニ ムケタ ダンネツガタジソク リョウシ パラメトロン ノ シンテン

抄録

We report recent progress on adiabatic quantum-flux-parametron (AQFP) logic, which is an energy-efficient superconductor logic based on quantum flux parametron (QFP). The switching energy of an AQFP gate can be arbitrarily reduced via adiabatic switching, in which the shape of the potential energy gradually varies between single-well and double-well shapes as the result of using ac excitation magnetic fluxes. First, we show the operation principle of AQFP and explain adiabatic switching in light of potential energy shapes. We also show calculated switching energy and bit error rates to demonstrate that the switching energy of AQFP can be significantly reduced while keeping a low error rate. Then, we report recently developed AQFP subsystems, which include an 8-bit carry look-ahead adder, a register file, and a long-interconnect driver. Our demonstration reveals that AQFP technology is ready to be applied in microprocessor design.

収録刊行物

• 低温工学

  低温工学 52 (5), 332-339, 2017

  公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)

キーワード

• adiabatic logic
• energy-efficient computing
• Josephson device
• low-power logic device
• QFP
• (Some figures in this article may appear in colour only in the electronic version)

詳細情報

• CRID: 1390282679590199936
• NII論文ID: 130006183700
• NII書誌ID: AN00333419
• DOI: 10.2221/jcsj.52.332
• ISSN: 18800408
• ISSN: 03892441
• NDL書誌ID: 028513815
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028513815
• Web Site: https://www.jstage.jst.go.jp/article/jcsj/52/5/52_332/_pdf
• 本文言語コード: ja
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