2023 Fiscal Year Final Research Report
Synergistic Integration of Novel Superconductor Electronics for Energy-Efficient Computing Accelerators
| Project/Area Number |
21K04191
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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| Research Institution | Yokohama National University |
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Principal Investigator |
AYALA Christopher 横浜国立大学, 先端科学高等研究院, 特任教員(准教授) (90772195)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | superconductor / adiabatic / EDA / Josephson junction / AQFP / RSFQ / cryptography / hash |
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| Outline of Final Research Achievements |
The application space for cryptography is an excellent target for superconductor electronics because it has intensive computational needs and high-power workloads. We developed the world’s first superconducting adiabatic SHA-3 block permutation unit chip to showcase the basic cryptographic hashing operations using adiabatic quantum-flux-parametron (AQFP) technology. It is a scaled down version of SHA-3 containing over 13,000 superconductor Josephson junction devices and operated up to 7 GHz with an energy dissipation of about 18.2 aJ/op. A larger scale chip is undergoing testing. Inspired by these results, we proposed a new architecture that combines two superconductor technologies: AQFP and RSFQ (rapid single flux quantum) technologies. It is a transport triggered architecture (TTA) that shows promise in both computational performance and energy efficiency in post-quantum cryptography benchmarks. This synergistic architecture will serve as the basis for future projects.
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| Free Research Field |
Superconductor electronics, adiabatic computing
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| Academic Significance and Societal Importance of the Research Achievements |
We show that hashing operations are possible in superconductor technology and that there is viable path towards using multiple superconductor logics intelligently in this space. This helps improve cybersecurity for society while reducing power consumption to support ICT.
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