[18p-S2_202-1~10] KS.2 Quantum Information Engineering Group | The 73rd JSAP Spring Meeting 2026

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Oral presentationKS Sessions organized by JSAP's Professional Group : KS.2 Quantum Information Engineering Group

[18p-S2_202-1~10]KS.2 Quantum Information Engineering Group

Wed. Mar 18, 2026 2:00 PM - 4:45 PM JST
Wed. Mar 18, 2026 5:00 AM - 7:45 AM UTC

S2_202 (South Bldg. 2)

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

[18p-S2_202-1][The 47th Young Scientist Award Speech] Performance Analysis of Discrete Heterojunction Bipolar Transistors for Semiconductor Qubit Readout

〇Shunsuke Ota¹, Takeshi Fukuda¹, Takafumi Toshimitsu¹, Raisei, Mizokuchi¹, Tetsuo Kodera¹ (1.Science Tokyo)

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

[18p-S2_202-2]Detuning dependence of energy relaxation time of a silicon qubit under readout conditions

〇Raisei Mizokuchi¹, Ryutaro Matsuoka¹, Shunsuke Ota¹, Itaru Yanagi², Toshiyuki Mine², Ryuta Tsuchiya², Digh Hisamoto², Hiroyuki Mizuno², Tetsuo Kodera¹ (1.Science Tokyo, 2.Hitachi Ltd)

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

[18p-S2_202-3]RF Reflectometry in a Planar Silicon Quantum Dot toward Hole-Spin Readout

〇(M1)Kenta Ebisawa¹, Yusuke Sato¹, Ibad Sayyid¹, Ryutaro Matsuoka¹, Itaru Yanagi², Toshiyuki Mine², Ryuta Tsuchiya², Digh Hisamoto², Hiroyuki Mizuno², Shunsuke Ota¹, Raisei Mizokuchi¹, Tetsuo Kodera¹ (1.Science Tokyo, 2.R&D Group, Hitachi, Ltd)

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[18p-S2_202-4]Machine-Learning Classification for IQ-Mapped Multi-Qubit Measurements

〇(M2)Duanlian Zhang¹, Naoya Negami¹, Raisei Mizokuchi¹, Shunsuke Ota¹, Riku Wada¹, Tetsuo Kodera¹ (1.Science Tokyo)

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

[18p-S2_202-5]Methods for evaluating tunnel coupling noise in semiconductor qubits

〇(B)Koki Azuma¹, Tatsuya Matsuda², Tetsuo Kodera², Jun Yoneda¹ (1.UTokyo, 2.Science Tokyo)

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[18p-S2_202-6]Enhanced Coherence in Transmon Qubits Based on Sidewall Spacer Passivated Epitaxial NbN/AlN/NbN Junctions

〇(M2)Koki Honda¹, Daiki Kurihara¹, Tokunoshin Uchida¹, Hiroki Kutsuma¹, Hirotaka Terai², Taro Yamashita¹ (1.Tohoku Univ., 2.NICT)

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[18p-S2_202-7]Evaluation of Gain Characteristics of a JTWPA Based on Non-Uniformly Spaced Josephson Junction Unit Cells

〇Toyofumi Ishikawa¹, Marc A. Gali Labarias¹, Takahiro Yamada¹, Yuki Nakashima¹, Yoshiro Urade¹, Kunihiro Inomata¹ (1.AIST)

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[18p-S2_202-8]Evaluation of Single-Flux-Quantum Circuit Parameters at Milikelvin Temperatures

〇Tomoki Ueda¹, Masamitsu Tanaka¹, Yoshihiro Kitagawa², Tetsuro Satoh², Tsuyoshi Yamamoto^2,3 (1.Nagoya Univ., 2.AIST, 3.NEC)

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[18p-S2_202-9]TSV-free wireless signal interconnects between substrates for superconducting quantum circuits

Miyuki Ozawa¹, Shigeru Kawakami¹, 〇Yutaka Tabuchi¹ (1.RIKEN RQC)

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

[18p-S2_202-10]Fabrication and Evaluation of TiN Thin Film Resonators on C Plane Sapphire Substrates

〇Satoru Mima¹, Hirotaka Terai¹, Kazuyo Takaki¹, Shigehito Miki¹ (1.NICT)

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