Publications

FY 2026:

FY 2025:

Awards

• Yutaro Mitsuda, March 25, 2026 (see Japanese page for detail.)
• Shuyuan Cui, March 25, 2026 (see Japanese page for detail.)

Journal papers

• D. Fukuyo, H. Shimada, and Y. Mizugaki, "Design of an RSFQ All-Digital Phase Locked Loop with a Time-to-Digital Converter," Journal of Physics: Conference Series, vol. 3054, 012024 (8 pages), July, 2025. [link to DOI]
• Y. Mizugaki, K. Sato, and H. Shimada, "Operation of RSFQ Hardware Random Number Generator Comprising Two Josephson Oscillators," IEICE Transactions on Electronics, vol. E108-C, no. 6, pp. 354-357, June, 2025. [link to DOI] [link to Repository (C-RECS)]
• T. Iizuka, J. Tanarom, Y. Mizugaki, and H. Shimada, "Lateral Phonon Propagation between superconducting devices on a Si/SiO₂ substrate," Journal of Applied Physics, vol. 137, no. 15, 155303 (10 pages), April, 2025. [link to DOI]

International conferences

• S. J. Oon, Y. Naruko, K. Yamaguchi, and Y. Mizugaki, "Characterizing reservoir computing behavior via in-plane miniband transport in ultrahigh-density quantum dots,” 14th RIEC International Symposium on Brain Functions and Brain Computer (BFBC 2026), Sendai, February 27–28, 2026. (GS1-4, Feb. 28)
• S. Komazawa, S. Shigeoka, H. Shimada, and Y. Mizugaki, "Performance evaluation of physical reservoirs composed of single and double gold nanoparticle clusters," 14th RIEC International Symposium on Brain Functions and Brain Computer (BFBC 2026), Sendai, February 27–28, 2026. (P-59, Feb. 27)
• K. Shigeoka, S. Komazawa, H. Shimada, and Y. Mizugaki, "Numerical Simulation of 2-Dimensional RC Circuits As a Model of Gold-Nanoparticle Physical Reservoir," 14th RIEC International Symposium on Brain Functions and Brain Computer (BFBC 2026), Sendai, February 27–28, 2026. (P-58, Feb. 27)
• S. Cui, D. Fukuyo, H. Shimada, and Y. Mizugaki, "Design of a Traveling-Wave Parametric Amplifier with a π-Josephson Junction," 38th International Symposium on Superconductivity (ISS 2025), Nagasaki, December 2–4, 2025. (ED7-03, Dec. 4)
• Y. Mizugaki and D. Fukuyo, "Experimental Validation of Key Elemental Circuits for RSFQ All-Digital Phase Locked Loop," 38th International Symposium on Superconductivity (ISS 2025), Nagasaki, December 2–4, 2025. (ED4-05, Dec. 3)
• H. Shimada, Y. Shioda, T. Iizuka, J. Tanarom, T. Watanabe, and Y. Mizugaki, "Current correlation between remote arrays of mesoscopic Josephson junctions through photon exchange," 30th International Conference on Low Temperature Physics (LT30), Bilbao, Spain, August 7–13, 2025. (P107 (321), Aug. 9)
• Y. Hayashi, H. Shimada, and Y. Mizugaki, "Hand-written digit image recognition using two parallelized gold-nanoparticle reservoirs" The 10th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO2025), Kanazawa, June 11–14, 2025. (P3-01, June 14)

Domestic conferences

• Y. Iinuma, H. Shimada, and Y. Mizugaki Mar. 2, 2026 (See Japanese page for detail.)
• Cui Shuyuan, H. Shimada, and Y. Mizugaki, Jan. 13, 2026. (See Japanese page for detail.)
• Cui Shuyuan, D. Fukuyo, H. Shimada, and Y. Mizugaki, Sep. 11, 2025. (See Japanese page for detail.)
• D. Fukuyo and Y. Mizugaki, Sep. 11, 2025. (See Japanese page for detail.)

FY 2024:

Awards

• Daiki Fukuyo, March 25, 2025 (see Japanese page for detail.)
• Yuki Hayashi, March 25, 2025 (see Japanese page for detail.)
• Daiki Fukuyo, January 14, 2025. (See Japanese page for detail.)
• Yoshinao Mizugaki, IEICE Senior Member, December 16, 2024 (see Japanese page for detail.)

Journal papers

• Y. Hayashi, H. Shimada, and Y. Mizugaki, "Information Processing Capabilities of Two Parallel Gold-nanoparticle Reservoirs Dependent on Operation Temperatures," Japanese Journal of Applied Physics, vol. 64, no. 2, 02SP42 (5 pages), February, 2025. [link to DOI] [link to Repository (C-RECS)]
• S. Hayashi, H. Shimada, Y. Mizugaki, "Microwave generator based on a single-flux-quantum pulse-frequency modulation D/A converter," IEICE Transactions on Electronics (Japanese Edition), vol. J107-C, no. 10, pp. 330-335, October, 2024. [link to DOI] [link to Repository (C-RECS)]
• K. Kobayashi, H. Shimada, and Y. Mizugaki, "Physical Reservoir Application of Random Network of Gold Nanoparticles Fabricated by Multi-Step Immersion in Gold Colloidal Solution," Japanese Journal of Applied Physics, vol. 63, no. 6, 064501 (6 pages), June, 2024. [link to DOI] [link to Repository (C-RECS)]

International conferences

• D. Fukuyo, H. Shimada, and Y. Mizugaki, "Design of an RSFQ All-Digital Phase Locked Loop with a Time-to-Digital Converter," 37th International Symposium on Superconductivity (ISS 2024), Kanazawa, December 3–5, 2024. (ED7-4, Dec. 5)
• Y. Mizugaki, S. Hayashi, and H. Shimada, "Design of a microwave generator as an application of an SFQ pulse-frequency modulation digital-to-analog converter," 37th International Symposium on Superconductivity (ISS 2024), Kanazawa, December 3–5, 2024. (ED3-2, Dec. 3)
• Y. Hayashi, H. Shimada, and Y. Mizugaki, "Information processing in Coulomb-blockade-based gold-nanoparticle reservoirs connected in parallel," 37th International Microprocesses and Nanotechnology Conference (MNC 2024), Kyoto, November 12–15, 2024. (14P-1-36, Nov. 14)
• Y. Mizugaki, S. Hayashi, and H. Shimada, "Microwave Generator Designed Based on Direct Digital Synthesis with SFQ Pulse-Frequency Modulation D/A Converter," 17th Superconducting SFQ VLSI Workshop (SSV 2024), Nagoya, October 11–12, 2024. (O-5, Oct. 11)

Domestic conferences

• S. Komazawa, Y. Hayashi, H. Shimada, and Y. Mizugaki, Mar. 14, 2025. (See Japanese page for detail.)
• Y. Iinuma, Y. Hayashi, H. Shimada, and Y. Mizugaki, Feb. 28, 2025. (See Japanese page for detail.)
• D. Fukuyo, H. Shimada, and Y. Mizugaki, Jan. 14, 2025. (invited) (See Japanese page for detail.)
• Y. Shioda, T. Iizuka, Y. Mizugaki, and H. Shimada, Sep. 17, 2024. (See Japanese page for detail.)
• T. Iizuka, Y. Mizugaki, and H. Shimada, Sep. 19, 2024. (See Japanese page for detail.)
• Y. Hayashi, K. Kobayashi, H. Shimada, and Y. Mizugaki, Sep. 16, 2024. (See Japanese page for detail.)
• K. Kobayashi, Y. Hayashi, H. Shimada, and Y. Mizugaki, Sep. 16, 2024. (See Japanese page for detail.)
• D. Fukuyo, H. Shimada, and Y. Mizugaki, Sep. 12, 2024. (See Japanese page for detail.)

FY 2023:

Awards

• Seiya Hayashi, March 25, 2024 (see Japanese page for detail.)

Journal papers

• Y. Mizugaki, "Superconducting D/A Converters Generating Quantum Voltage Defined by the Reference Microwave Frequency and the AC Josephson Effect," TEION KOGAKU (J. Cryo. Super. Soc. Jpn.) vol. 59, no. 2, pp. 80-87, March, 2024. [link to DOI]
• K. Watanabe, Y. Mizugaki, S. Moriya, H. Yamamoto, T. Yamashita, and S. Sato, "Numerical Study on Physical Reservoir Computing with Josephson Junctions," IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, 1700204 (4 pages), January, 2024. [link to DOI]
• Y. Mizugaki, K. Fujikura, and H. Shimada, "Nonlinear Signal Conversion in Gold-Nanoparticle Random Array for Physical Reservoir Applications," Japanese Journal of Applied Physics, vol. 63, no.1, 01SP35 (5 pages), January, 2024. [link to DOI] [link to Repository (C-RECS)]
• Y. Mizugaki, K. Sato, H. Shimada, and T. Onomi, "Random Number Generation Utilizing Timing Jitters of Single-Flux-Quantum Propagation," Proceedings of 2023 PhotonIcs & Electromagnetics Research Symposium (PIERS2023), Prague, pp. 1744–1748, August, 2023. (IEEE Xplore) [link to DOI]
• K. Sato, N. Sega, H. Shimada, Y. Mizugaki, "Evaluation of True Random Number Sequences Generated by Utilizing Timing Jitters in Superconducting Integrated Circuits," Journal of Physics: Conference Series, vol. 2545, 012022 (8 pages), August, 2023. [link to DOI]

International conferences

• Y. Mizugaki, K. Fujikura, and H. Shimada, "Coulomb-Blockade-Based Nonlinear Signal Conversion in Gold-Nanoparticle Random Arrays," 14th International Workshop on Nanostructures & Nanoelectronics (IWNN-14), On-oine, March 5–6, 2024.
• Y. Hayashi, K. Kobayashi, M. Moriya, H. Shimada, and Y. Mizugaki, "Physical reservoir made of gold-nanoparticle random arrays exhibiting nonlinear characteristics due to the Coulomb blockade," 12th RIEC International Symposium on Brain Functions and Brain Computer (BFBC 2024), Sendai, February 27–28, 2024. ([P-17], Feb. 27)
• Y. Mizugaki, "Development of RSFQ digital-to-analog converters generating quantum voltages," 36th International Symposium on Superconductivity (ISS2023), Wellington, New Zealand, November 28-30, 2023. (ED-8-1-INV, invited)
• K. Kobayashi, Y. Hayashi, K. Fujikura, M. Moriya, H. Shimada, and Y. Mizugaki, "Physical Reservoir Application of Random Network of Gold Nanoparticles Fabricated by Multi-Step Immersion in Gold Colloidal Solution," 36th International Microprocesses and Nanotechnology Conference (MNC 2023), Sapporo, November 14–17, 2023. (17P-1-15, Nov. 17)
• K. Watanabe, Y. Mizugaki, S. Moriya, H. Yamamoto, T. Yamashita, and S. Sato, "Numerical study on physical reservoir computing with Josephson junctions," 16th European Conference on Applied Superconductivity (EUCAS2023), Bologna, Italy, September 3–7, 2023. 2-EP-OD-03S (poster, 11:30, Sep. 5)
• Y. Mizugaki, K. Sato, and H. Shimada, "RSFQ Hardware Random Number Generator Comprising Two Josephson Oscillators," 16th European Conference on Applied Superconductivity (EUCAS2023), Bologna, Italy, September 3–7, 2023. 1-EO-SN-04S (oral, 12:35, Sep. 4)
• Y. Mizugaki, K. Sato, H. Shimada, and T. Onomi, "Random Number Generation Utilizing Timing Jitters of Single-Flux-Quantum Propagation," The 44th PhotonIcs and Electromagnetics Research Symposium (PIERS2023), Prague, Czech Republic, July 3–6, 2023. 3P_12-4 (oral, pm, Jul. 5)
• Y. Mizugaki, K. Fujikura, and H. Shimada, "Nonlinear Signal Conversion in Gold-Nanoparticle Random Array for Physical Reservoir Applications," The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO2023), Kanazawa, June 5–8, 2023. J-4 (oral, 10:50, Jun. 8)

Domestic conferences

• Y. Hayashi, K. Kobayashi, M. Moriya, H. Shimada, and Y. Mizugaki, Mar. 23, 2024. (See Japanese page for detail.)
• D. Fukuyo, H. Shimada, and Y. Mizugaki, Mar. 6, 2024. (See Japanese page for detail.)
• S. Hayashi, H. Shimada, and Y. Mizugaki, Jan. 23, 2024. (See Japanese page for detail.)
• Y. Shimada, M. Moriya, H. Shimada, D. Tadaki, A. Hirano-Iwata, and Y. Mizugaki, Dec. 8, 2023. (See Japanese page for detail.)
• T. Iizuka, Y. Mizugaki, and H. Shimada, Sep. 22, 2023. (See Japanese page for detail.)
• S. Hayashi, H. Shimada, and Y. Mizugaki, Sep. 21, 2023. (See Japanese page for detail.)
• Y. Shimada, D. Hiramatsu, M. Moriya, H. Shimada, D. Tadaki, A. Hirano-Iwata, and Y. Mizugaki, Sep. 20, 2023. (See Japanese page for detail.)
• K. Kobayashi, Y. Hayashi, K. Fujikura, M. Moriya, H. Shimada, and Y. Mizugaki, Sep. 20, 2023. (See Japanese page for detail.)

List of publications from FY 2002 to FY 2022.

Click here for Mizugaki's personal list of publications.

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