| Presentation | 2021-11-15 High-frequency measurement of reversible quantum-flux-parametron logic Taiki Yamae, Naoki Takeuchi, Nobuyuki Yoshikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | superconducting integrated circuit / adiabatic quantum-flux-parametron (AQFP) / reversible computing |
| Paper # | SCE2021-7 |
| Date of Issue | 2021-11-08 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2021/11/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoshio Mizugaki(Univ. of Electro-Comm.) |
| Vice Chair | |
| Secretary | (AIST) |
| Assistant | Hiroyuki Akaike(Daido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| 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 |
| Sub Title (in English) | |
| Keyword(1) | superconducting integrated circuit |
| Keyword(2) | adiabatic quantum-flux-parametron (AQFP) |
| Keyword(3) | reversible computing |
| 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 |
| 3rd Author's Affiliation | Yokohama National University(Yokohama Natl. Univ.) |
| Date | 2021-11-15 |
| Paper # | SCE2021-7 |
| Volume (vol) | vol.121 |
| Number (no) | SCE-248 |
| Page | pp.pp.1-5(SCE), |
| #Pages | 5 |
| Date of Issue | 2021-11-08 (SCE) |