Development of High-speed Combinational Circuits Using Superconductive Circuit

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760255
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Electron device/Electronic equipment
• Research Institution: Yokohama National University
• Principal Investigator: YAMANASHI Yuki Yokohama National University, 学際プロジェクト研究センター, 特任教員(助教) (70467059)
• Project Period (FY): 2009 – 2010
• Keywords: ジョセフソン接合 / 単一磁束量子回路 / 磁束量子パラメトロン / SQUID / 組み合わせ論理回路

Research Abstract

Novel superconductive combinational logic circuits were proposed and implemented. The proposed superconductive combinational logic circuits comprise a magnetically coupled SQUID array. By adjusting the circuit parameters and coupling strengths between neighboring SQUIDs, fundamental combinational logic gates can be built. We have verified the accuracy of the operations of the fundamental logic gates by analog circuit simulations.

Research Products

• [Journal Article] Superconductive Combinational Logic Circuit Using Magnetically Coupled SQUID Array (2010)
  • Author(s): Y.Yamanashi, K.Umeda, K.Sai
  • Journal Title: Physica C Vol.470 Pages: 1546-1549
  • Peer Reviewed
• [Journal Article] Design Approach of Dynamically Reconfigurable Single Flux Quantum Logic Gate
  • Author(s): Y.Yamanashi, I.Okawa, N.Yoshikawa
  • Journal Title: IEEE Trans.Appl.Supercond (to be published.)
  • Peer Reviewed
• [Presentation] Investigation of a Dependence of a Gray Zone of a Single Flux Quantum Comparator on the Circuit Parameters (2010)
  • Author(s): T. Imaizumi, Y. Yamanashi, N.Yoshikawa
  • Place of Presentation: Tsukuba, Japan.
  • Year and Date: 2010-11-03
• [Presentation] 動的に再構成可能な超伝導単一磁束量子論理回路による可変ビット長シフトレジスタ (2010)
  • Author(s): 山梨裕希, 河邊貴之, 吉川信行
  • Organizer: 応用物理学会学術講演会
  • Place of Presentation: 長崎
  • Year and Date: 2010-09-17
• [Presentation] Demonstration of 30 Gbit/s generation of superconductive true random number generator (2010)
  • Author(s): T. Sugiura, Y. Yamanashi, N. Yoshikawa
  • Organizer: Applied Superconductivity Conference (ASC) 2010, Aug.
  • Place of Presentation: Washington, USA.
  • Year and Date: 2010-08-03
• [Presentation] Superconductive Combinational Logic Circuit Using Magnetically Coupled SQUID Array (2009)
  • Author(s): Y. Yamanashi, K. Umeda, K. Sai
  • Organizer: 22nd International Symposium on Superconductivity (ISS)
  • Place of Presentation: Tsukuba, Japan.
  • Year and Date: 2009-11-04
• [Presentation] 磁気結合したSQUIDアレイによる組み合わせ論理回路 (2009)
  • Author(s): 梅田麗雅, 山梨裕希, 崔聖東
  • Organizer: 電子情報通信学会ソサイエティ大会
  • Place of Presentation: 新潟
  • Year and Date: 2009-09-17
• [Remarks] ホームページ等
  • URL: http://www.nashilab.dnj.ynu.ac.jp/index.html