The 72nd JSAP Spring Meeting 2025
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Session Details

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

[15a-K406-1~11]KS.2 Quantum Information Engineering Group

Sat. Mar 15, 2025 9:00 AM - 12:00 PM JST
Sat. Mar 15, 2025 12:00 AM - 3:00 AM UTC
K406 (Lecture Hall Bldg.)
Taro Yamashita(Tohoku Univ.), Koshino Kazuki(Institute of Science Tokyo)
9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[15a-K406-1][The 57th Young Scientist Presentation Award Speech] Fully Epitaxial NbN/AlN/NbN Josephson Junctions with Sidewall Spacer Structure for Superconducting Qubits

〇Koki Honda1, Daiki Kurihara1, Duong Pham1, Hiroki Kutsuma1, Hirotaka Terai2, Taro Yamashita1 (1.Tohoku Univ., 2.NICT)
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9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[15a-K406-2]Single-qubit-gate leakage-error characterization in transmon qubits

〇Toru Abe1,2, Ryo Murakami1,2, Yoshiyasu Doi1,2, Shintaro Sato1,2, Yutaka Tabuchi2, Yasunobu Nakamura2,3 (1.Fujitsu Ltd., 2.RIKEN RQC, 3.Univ. of Tokyo)
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9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[15a-K406-3]Calculation of participation ratio around junction wire of superconducting transmon qubit

〇Yoshihito Hashimoto1, Tsuyoshi Yamamoto1, Yohei Kawakami1 (1.NEC Corporation)
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9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[15a-K406-4]Josephson Junctions with Ferromagnetic Insulators for High-Coherence Superconducting Qubits

〇Daiki Kurihara1, Koki Honda1, Yugo Mori1, Duong Pham1, Hiroki Kutsuma1, Taro Yamashita1 (1.Tohoku Univ.)
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10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[15a-K406-5]Device Characterization of a Kerr Parametric Oscillator Qubit using Microwave Reflection Spectroscopy

〇Kosuke Mizuno1, Shumpei Masuda1, Akiyoshi Tomonaga1, Takaaki Aoki1, Toyofumi Ishikawa1, Kunihiro Inomata1 (1.AIST)
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10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[15a-K406-6]Encoding high-order binominal code using superconducting cavity

〇Takumi Mikawa1, Takaaki Takenaka1, Kosuke Kakuyanagi1, Shiro Saito1 (1.NTT-BRL)
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10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[15a-K406-7]Wideband and Compact Josephson Parametric Amplifier Based on Lumped Elements

〇Yoshiro Urade1, Takahiro Yamada1, Yuki Nakashima1, Shuichi Nagasawa1, Fumihiro China1, Go Fujii1, Kunihiro Inomata1 (1.AIST)
Comment()
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[15a-K406-8]Efficient spectrum analysis for multi-junction nonlinear superconducting circuit

〇Akiyoshi Tomonaga1,2,3, Hiroto Mukai3,2, Kosuke Mizuno1, Jaw-Shen Tsai2,3 (1.AIST, 2.TUS, 3.RIKEN)
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11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[15a-K406-9]Galvanically connected tunable coupler between a cavity and a waveguide

〇Kazuki Koshino1, Kosuke Mizuno2 (1.Science Tokyo, 2.AIST)
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11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[15a-K406-10]Development of Low-Power Single-Flux-Quantum Standard Cells Using 250 A/cm2 Process toward Quantum Bit Control

〇Masamitsu Tanaka1, Yoshihiro Kitagawa2,3, Tetsuro Satoh2,3, Tsuyoshi Yamamoto2,3 (1.Nagoya Univ., 2.NEC, 3.AIST)
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11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15a-K406-11]Relationship between Coplanar Waveguide resonators with Al thin film and the difference of film quality by deposition rate

〇Yuma Nikura1,2, Akiyoshi Tomonaga1, Yoshiro Urade1, Yuichi Fujita1, Kunihiro Inomata1 (1.AIST, 2.Chuo Univ.)
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