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| Presentation | 2015-08-04 15:45 Proposal and Demonstration of Magnetically Coupled Quantum Flux Latch Naoki Tsuji, Naoki Takeuchi, Tatsuya Narama (Yokohama National Univ.), Thomas Ortlepp (CiS), Yuki Yamanashi, Nobuyuki Yoshikawa (Yokohama National Univ.)  SCE2015-13 Link to ES Tech. Rep. Archives: SCE2015-13 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have been developing the adiabatic quantum-flux-parametron (AQFP) as an ultra-low-power superconductor logic. In a previous study, we proposed and demonstrated the quantum-flux-latch (QFL), which is a compact and compatible latch for AQFP logic. The QFL is composed of an AQFP buffer gate and a storage loop, which are directly connected to each other. However, the operation margins were not sufficiently wide due to back actions from neighboring gates. In the present study, we propose a magnetically coupled QFL (MC-QFL), where the storage loop and the buffer gate are physically separated and magnetically coupled with each other so as to avoid the trade-off in the operation margins. The simulation results showed that the critical parameter margin of the MC-QFL is twice as large as that of the previously designed QFL. For comparison, we fabricated and demonstrated both the previously designed QFL and the MC-QFL. The measurement results showed that the MC-QFL has wider operation margins compared with the previously designed QFL. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | QFP / adiabatic logic / latch / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 173, SCE2015-13, pp. 29-33, Aug. 2015. | |
| Paper # | SCE2015-13 | |
| Date of Issue | 2015-07-28 (SCE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SCE2015-13 Link to ES Tech. Rep. Archives: SCE2015-13 |
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| Conference Information | |
| Committee | SCE |
| Conference Date | 2015-08-04 - 2015-08-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yokohama National Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal processing technologies and their applications, etc. |
| Paper Information | |
| Registration To | SCE |
| Conference Code | 2015-08-SCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal and Demonstration of Magnetically Coupled Quantum Flux Latch |
| Sub Title (in English) | |
| Keyword(1) | QFP |
| Keyword(2) | adiabatic logic |
| Keyword(3) | latch |
| Keyword(4) | |
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| 1st Author's Name | Naoki Tsuji |
| 1st Author's Affiliation | Yokohama National University (Yokohama National Univ.) |
| 2nd Author's Name | Naoki Takeuchi |
| 2nd Author's Affiliation | Yokohama National University (Yokohama National Univ.) |
| 3rd Author's Name | Tatsuya Narama |
| 3rd Author's Affiliation | Yokohama National University (Yokohama National Univ.) |
| 4th Author's Name | Thomas Ortlepp |
| 4th Author's Affiliation | CiS Research Institute for Microsensor Systems (CiS) |
| 5th Author's Name | Yuki Yamanashi |
| 5th Author's Affiliation | Yokohama National University (Yokohama National Univ.) |
| 6th Author's Name | Nobuyuki Yoshikawa |
| 6th Author's Affiliation | Yokohama National University (Yokohama National Univ.) |
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| Speaker | Author-1 |
| Date Time | 2015-08-04 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | SCE |
| Paper # | SCE2015-13 |
| Volume (vol) | vol.115 |
| Number (no) | no.173 |
| Page | pp.29-33 |
| #Pages | 5 |
| Date of Issue | 2015-07-28 (SCE) |
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