Paper Abstract and Keywords |
Presentation |
2021-11-15 14:20
High-frequency measurement of reversible quantum-flux-parametron logic Taiki Yamae (Yokohama Natl. Univ./JSPS Research Fellow), Naoki Takeuchi, Nobuyuki Yoshikawa (Yokohama Natl. Univ.) SCE2021-7 Link to ES Tech. Rep. Archives: SCE2021-7 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Reversible quantum-flux-parametron (RQFP) is a logically and thermodynamically reversible logic gate composed of adiabatic quantum-flux-parametron (AQFP) logic. In a previous study, we have demonstrated several reversible circuits using RQFP logic at a low frequency. In the present study, we conducted high-speed test of a reversible AND (RAND) gate and an RQFP gate to show that RQFP gate can operate at high clock frequencies. RAND gates can operate at up to 3.5 GHz in experiments. However, RQFP gates cannot operate at 1 GHz. This is because the input currents to majority gates in RQFP gate is small, causing malfunctions at high clock frequencies due to fabrication deviation and thermal noise. In the future, we have to modify the circuit structure to increase the input currents to majority gates in RQFP gate. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
superconducting integrated circuit / adiabatic quantum-flux-parametron (AQFP) / reversible computing / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 248, SCE2021-7, pp. 1-5, Nov. 2021. |
Paper # |
SCE2021-7 |
Date of Issue |
2021-11-08 (SCE) |
ISSN |
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 |
SCE2021-7 Link to ES Tech. Rep. Archives: SCE2021-7 |
Conference Information |
Committee |
SCE |
Conference Date |
2021-11-15 - 2021-11-15 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
SCE |
Conference Code |
2021-11-SCE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
High-frequency measurement of reversible quantum-flux-parametron logic |
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Keyword(1) |
superconducting integrated circuit |
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adiabatic quantum-flux-parametron (AQFP) |
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reversible computing |
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1st Author's Name |
Taiki Yamae |
1st Author's Affiliation |
Yokohama National University/JSPS Research Fellow (Yokohama Natl. Univ./JSPS Research Fellow) |
2nd Author's Name |
Naoki Takeuchi |
2nd Author's Affiliation |
Yokohama National University (Yokohama Natl. Univ.) |
3rd Author's Name |
Nobuyuki Yoshikawa |
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Yokohama National University (Yokohama Natl. Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-11-15 14:20:00 |
Presentation Time |
25 minutes |
Registration for |
SCE |
Paper # |
SCE2021-7 |
Volume (vol) |
vol.121 |
Number (no) |
no.248 |
Page |
pp.1-5 |
#Pages |
5 |
Date of Issue |
2021-11-08 (SCE) |