[10p-A24-1~15] 11.4 Junction and circuit fabrication process, digital applications | The 87th JSAP Autumn Meeting 2026

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Oral presentation11 Superconductivity : 11.4 Junction and circuit fabrication process, digital applications

[10p-A24-1~15]11.4 Junction and circuit fabrication process, digital applications

Thu. Sep 10, 2026 2:00 PM - 6:00 PM JST
Thu. Sep 10, 2026 5:00 AM - 9:00 AM UTC

A24 (Faculty of Info. Sci. & Tech. Bldg.)

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[10p-A24-1]All-Nitride Superconducting Qubits with Energy Relaxation Times Exceeding 800 μs

〇Sunmi Kim¹, Hirotaka Terai², Tomoko Fuse¹, Sahel Ashhab¹, Shotaro Shirai³, Atsushi Noguchi^3,4,5, Kouichi Semba^1,6 (1.NICT Tokyo, 2.NICT Kobe, 3.RIKEN RQC, 4.Univ. of Tokyo (Arts&Sci.), 5.InaRIS, 6.Univ. of Tokyo (Sci.))

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[10p-A24-2]Superconducting Circuit Integration at the MXC Stage Enabled by a Low-Jc Nb Multilayer Wiring Process and Automated Parameter/Operating-Point Optimization

〇Daisuke Saida¹, Shoichi Suda¹, Masako Kataoka¹, Takafumi Kojima¹, Kenjiro Hayashi¹, Kazumasa Makise², Sho Masui², Sho Matsuoka³, Shen Hongxian³, Yuki Yamanashi³ (1.Fujitsu Quantum Lab., 2.NAOJ, 3.YNU)

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-A24-3]kHz-Accuracy Transmon-Frequency Design Based on Impedance Evaluation across Josephson-Junction Ports

〇(D)Haruki Kikuchi^1,2, Kohei Matsuura¹, Shuhei Tamate³, Hiroto Mukai¹, Shinichi Inoue¹, Yasunobu Nakamura^1,3 (1.Tokyo Univ., 2.Fujitsu, 3.Riken)

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[10p-A24-4]Reproduction of CNOT Gate Operation Using an Analog Computer Based on the Hamiltonian of a Two-Qubit Superconducting System

〇Tetsuya Matsuno¹, Ken Arita², Soji Otabe² (1.Ariake Coll, 2.Kyushu Inst. Tech)

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[10p-A24-5]Stacking Configuration Dependence of Current Redistribution Characteristics in Two-Layer YBCO Conductors Fabricated by Chemical Surface Activation Bonding

〇Daisuke Ohkura^1,2, Michihiko Watanabe^1,2, Kou Moriyasu^1,2, Yuta Onodera³, Naoki Hirano³, Noriko Chikumoto^1,3, Ryosuke Kodama^1,2 (1.ILE The Univ. of Osaka, 2.The Univ. of Osaka, 3.NIFS)

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[10p-A24-6]Temperature and Magnetic Field Dependence of the Joint Interface Resistance of YBCO Tapes Fabricated by Chemical Surface Activation Bonding

〇Daisuke Ohkura^1,2, Michihiko Watanabe^1,2, Kou Moriyasu^1,2, Yuji Tsuchiya³, Satoshi Awaji³, Noriko Chikumoto¹, Ryosuke Kodama^1,2 (1.ILE, The Univ. of Osaka, 2.The Univ. of Osaka, 3.IMR Tohoku Univ)

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-A24-7]Measurement of Resistances of Pd89Ni11 Thin Films at Low Temperatures for Resistors in Superconducting Circuits

〇(M1)Ryo Ogura¹, Feng Li¹, Akira Fujimaki¹, Masamitsu Tanaka¹ (1.Nagoya Univ.)

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-A24-8]Analysis of Transfer Coefficient in Cascade Connection of Flux Transfer Circuits Using π-junctions

〇Kurato Toyama¹, Feng Li¹, Masamitsu Tanaka¹, Akira Fujimaki¹ (1.Nagoya Univ.)

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-A24-9]Implementation of Linearly Inseparable Logical Functions Using SFQ Spiking Neural Networks

〇Yuto Ueno¹, Zeyu Han^1,2, Nobuyuki Yoshikawa^1,2, Yuki Yamanashi^1,2 (1.YNU, 2.YNU IAS)

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[10p-A24-10]Delay time investigation of a Superconductive Random Number Generator with Acceleration Mechanism

〇Yoshinobu Tomitaka¹, Nobuyuki Yoshikawa^2,3,4, Yuki Yamanashi^2,3,4 (1.YNU Grad. Sch. Eng. Sci., 2.YNU Fac. Eng., 3.YNU IAS, 4.YNU IMS)

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[10p-A24-11]Design and Evaluation of a Superconducting Stochastic Number Generator That Does Not Require Operating Point Control

〇Ken Narita¹, Ryota Fukuzaki¹, Nobuyuki Yoshikawa², Yuki Yamanashi² (1.YNU, 2.YNU IAS)

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[10p-A24-12]Demonstration of a superconductor crossbar with a flux quantum memory
for stochastic neural networks

〇Yudai Nakai¹, Wenhui Luo¹, Nobuyuki Yoshikawa¹, Naoki Takeuchi² (1.Yokohama Natl. Univ., 2.Tohoku Univ.)

5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[10p-A24-13]Design and static evaluation of a superconducting current steering DAC using differential current steering switches

〇Kazushi Kuwabara¹, Yoshinao Mizugaki¹, Hiroshi Shimada¹ (1.Dept. Engineering Science, The Univ. of Electro-Comm.(UEC))

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[10p-A24-14]Simulation-Based Evaluation of Current–Voltage Characteristics in Two-Dimensional Josephson Junction Arrays

〇Rintaro Shimizu¹, Nobuyuki Yoshikawa¹ (1.Yokohama Natl. Univ.)

5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

[10p-A24-15]Design of Arbiter Physical Unclonable Functions for Superconducting Single Flux Quantum Circuits

〇Eita Makino¹, Nobuyuki Yoshikawa^1,2,3, Yuki Yamanashi^1,2,3 (1.Yokohama National Univ., 2.Yokohama National Univ. IAS, 3.Yokohama National Univ. IMS)

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