冨永雄介、白井菖太郎、菱田有二、寺井弘高、野口篤史
Intrinsic quality factors approaching 10 million in superconducting planar resonators enabled by spiral geometry
EPJ Quantum Technol. 12, 60 (2025), DOI: 10.1140/epjqt/s40507-025-00367-w越野和樹
Galvanically connected tunable coupler between a cavity and a waveguide
New J. Phys. 27, 043001 (2025), DOI: 10.1088/1367-2630/adc1fb星大輔、長瀬寿昭、Sangil Kwon、井山大輔、神谷隆彦、藤井詩織、向井寛人、Shahnawaz Ahmed、Anton Frisk Kockum、渡部昌平、吉原文樹、蔡兆申
Entangling Schrödinger’s cat states by bridging discrete- and continuous-variable encoding
Nat. Commun 16, 1309 (2025), DOI: 10.1038/s41467-025-56503-8上野洋典、今村智史、富田祐永、谷本輝夫、田中雅光、田渕豊、井上弘士、中村宏
C3-VQA: Cryogenic Counter-Based Coprocessor for Variational Quantum Algorithms
IEEE Transactions on Quantum Engineering 6, 3100317 (2024), DOI: 10.1109/TQE.2024.3521442村山洋佑、 川上彰、Shan Wenlei、江﨑翔平、宮地晃平、増井翔、小嶋崇文、鵜澤佳徳
Fabrication and Evaluation of Waveguide Josephson Array Oscillators at Millimeter-Wave Lengths for SIS Mixer-Based Amplifiers
IEEE Transactions on Applied Superconductivity 35, 2400306 (2024), DOI: 10.1109/TASC.2024.3515971大舘暁、斎藤直洋、青山肇、塚本宏之、楠山幸一、中村泰信
Fabrication of superconducting quantum circuits on 12-inch wafers using an ArF immersion lithography system Ⅱ
Proc. SPIE 13115, UV and Higher Energy Photonics: From Materials to Applications 2024, 1311508宮尾知寿、吉永啓人、田中貴久、石黒仁輝、多田宗弘、内田建
Imaginary impedance due to hopping phenomena and evaluation of dopant ionization time in cryogenic metal-oxide-semiconductor devices on highly doped substrate
Appl. Phys. Express 17, 051001(2024), DOI: 10.35848/1882-0786/ad3d2a沼田秀昭、井口憲幸、 田中雅光、岡本浩一郎、三浦貞彦、内田建、石黒仁揮、 阪本利司、多田宗弘
Superconducting Nb interconnects for Cryo-CMOS and superconducting digital logic applications
Jpn. J. Appl. Phys. 63, 04SP73(2024), DOI: 10.35848/1347-4065/ad37c1鵜澤佳徳、川上彰、小嶋崇文、牧瀬圭正、増井翔、宮地晃平、村山洋佑、上月雄人、Shan Wenlei
Development of a Waveguide Josephson Oscillator for SIS Mixer-Based Amplifiers
IEEE Transactions on Applied Superconductivity 34, 2400205 (2024), DOI: 10.1109/TASC.2024.3358780井山大輔、神谷隆彦、藤井詩織、向井寛人、Zhou Yu、長瀬寿昭、朝永顕成、Wang Rui、Jiao-Jiao Xue、渡部昌平、Kwon Sangil、蔡兆申
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
Nat. Commun 15, 86 (2024), DOI: 10.1038/s41467-023-44496-1白家維、内田建、多田宗弘、石黒仁揮
Design and analysis of a high-speed low-power comparator with regeneration enhancement and through current suppression techniques from 4 K to 300 K in 65-nm Cryo-CMOS
Microelectronics Journal 144, C (2023), DOI: 10.1016/j.mejo.2023.106066多田宗弘、岡本浩一郎、田中貴久、宮村信、石黒仁揮、内田建、阪本利司
A 65nm Cryogenic CMOS Design and Performance at 4.2K for Quantum State Controller Application
IEEE Journal of the Electron Devices Society 12, 28 (2023), DOI: 10.1109/JEDS.2023.3340136吉岡輝昭、向井寛人、朝永顕成、高田真太郎、岡崎雄馬、金子晋久、中村秀司、蔡兆申
Active initialization experiment of a superconducting qubit using a quantum circuit refrigerator
Phys. Rev. Applied 20, 044077(2023), DOI: 10.1103/PhysRevApplied.20.044077上野洋典、富田祐永、谷本輝夫、田中雅光、田渕豊、井上弘士、中村宏
Inter-Temperature Bandwidth Reduction in Cryogenic QAOA Machines
IEEE Computer Architecture Letters 23, 9 (2023), DOI: 10.1109/LCA.2023.3322700大舘暁、斎藤直洋、鈴木広介、青山肇、塚本宏之、楠山幸一、中村泰信
Fabrication of superconducting quantum circuits on 12-inch wafers using an ArF immersion lithography system
Proc. SPIE 12652, UV and Higher Energy Photonics: From Materials to Applications 2023, 1265205後藤慎平、越野和樹
Efficient numerical approach for the simulations of high-power dispersive readout with time-dependent unitary transformation
Phys. Rev. A 108, 033722 (2023), DOI: 10.1103/PhysRevA.108.033722山下 薫、Benjamin Hershberg、吉岡 健太郎、石黒仁揮
A 4.6K to 400K Functional PVT-Robust Ringamp-Based 250MS/s 12b Pipelined ADC with Pole-Aware Bias Calibration
2023 IEEE Custom Integrated Circuits Conference (CICC), TX, USA, 2023, pp.740-752Julia Zotova、Rui Wang、 Alexander Semenov、 Yu Zhou、 Ivan Khrapach、 朝永顕成、Oleg Astafiev、 蔡兆申
Compact Superconducting Microwave Resonators Based on Al-AlO x -Al Capacitors
Phys. Rev. Applied 19, 044067 (2023), DOI: 10.1103/PhysRevApplied.19.044067増井翔、小嶋崇文、鵜澤佳徳、牧瀬圭正、小川英夫、大西利和
Proof-of-Concept Experiment on a Wideband Microwave Gyrator with Two Superconductor– Insulator–Superconductor-Based Mixers
IEEE Transactions on Applied Superconductivity 33, 1501204 (2023), DOI: 10.1109/TASC.2023.3258368増井翔、小嶋崇文、鵜澤佳徳、大西利和
A Novel Microwave Nonreciprocal Isolator Based on Frequency Mixers
IEEE Microwave and Wireless Technology Letters 33, 1051 (2023), DOI: 10.1109/LMWT.2023.3253124鵜澤佳徳、小嶋崇文、牧瀬圭正、川上彰、上月雄人、増井翔、単文磊
Development of an SIS Mixer-Based Low-Noise Amplifier Amenable to Josephson Oscillator Pumping
IEEE Transactions on Applied Superconductivity 33, 1500804 (2023), DOI: 10.1109/TASC.2023.3254496水野皓介、竹中崇了, Imran Mahboob , 齊藤志郎
Effect of decoherence for gate operations on a superconducting bosonic qubit
New J. Phys. 25, 033007 (2023), DOI: 10.1088/1367-2630/acc02e田中雅光、北川佳廣、佐藤哲朗、山本剛
Design and Fabrication of Low-Power Single-Flux-Quantum Circuits Toward Quantum Bit Control
IEEE Transactions on Applied Superconductivity 33, 1700805 (2023), DOI: 10.1109/TASC.2023.3251304Iakoupov Ivan 、越野和樹
Saturable Purcell filter for circuit quantum electrodynamics
Phys. Rev. Research 5, 013148 (2023), DOI:10.1103/5.013148小嶋崇文、増井翔、Shan Wenlei、鵜澤佳徳
Characterization of a low-noise superconductor–insulator–superconductor-based microwave amplifier with local oscillator phase-adjusting architecture
Appl. Phys. Lett. 122, 072601 (2023), DOI:10.1063/5.0134595Gopika Lakshmi Bhai、向井寛人、蔡兆申
Mitigation of noise in Josephson parametric oscillator by injection locking
Appl. Phys. Lett. 122, 054002 (2023), DOI:10.1063/5.0134702Gopika Lakshmi Bhai、向井寛人、山本剛、蔡兆申
Noise Properties of a Josephson Parametric Oscillator
Phys. Rev. Applied 19, 014065 (2023), DOI: 10.1103/PhysRevApplied.19.014065Leonid V. Abdurakhimov、 Imran Mahboob、樋田啓、角柳孝輔、松崎雄一郎、齊藤志郎
Identification of Different Types of High-Frequency Defects in Superconducting Qubits
PRX Quantum 3, 040332 (2022), DOI: 10.1103/PRXQuantum.3.040332岡本浩一郎、田中貴久、宮村信、石黒仁揮、内田建、阪本利司、多田宗弘
Cryogenic operation of NanoBridge at 4 K for controlling qubit
Jpn. J. Appl. Phys. 61, SC1049 (2022), DOI: 10.35848/1347-4065/ac4303Sangil Kwon、渡部昌平、蔡兆申
Autonomous Quantum Error Correction in a Four-Photon Kerr Parametric Oscillator
npj Quantum Inf. 8, 40 (2022), DOI: 10.1038/s41534-022-00553-zZhi-Peng Yang, Alakesh Baishya, Huan-Yu Ku, Yu-Ran Zhang, Anton Frisk Kockum, Yueh-Nan Chen, Fu-Li Li, Jaw-Shen Tsai, Franco Nori
Deterministic One-way Logic Gates on a Cloud Quantum Computer
Phys. Rev. A 105, 042610 (2022), DOI: 10.1103/PhysRevA.105.042610Sishi Wu, Dengke Zhan, Rui Wang, Yulong Liu, Shuai-Peng Wang, Qichun Liu, J S Tsai and Tiefu Li
Vacuum-gap-based lumped element Josephson parametric amplifier
Chinese Phys. B 31, 010306 (2022), DOI: 10.1088/1674-1056/ac280c朝永顕成、向井寛人、吉原文樹、蔡兆申
Quasiparticle Tunneling and 1/f Charge Noise in Ultrastrongly Coupled Superconducting Qubit and Resonator
Phys. Rev. B 104, 224509 (2021), DOI: 10.1103/PhysRevB.104.224509宮永崇史、朝永顕成、伊藤輝、向井寛人、蔡兆申
Ultrastrong Tunable Coupler Between Superconducting LC Resonators
Phys. Rev. Applied 16, 064041(2021), DOI: 10.1103/ PhysRevApplied.16.064041吉岡輝昭、蔡兆申
Fast unconditional initialization for superconducting qubit and resonator using quantum-circuit refrigerator
Appl. Phys. Lett. 119, 124003 (2021), DOI: 10.1063/5.0057894Dengke Zhang、蔡兆申
Magnetic-Free Traveling-Wave Nonreciprocal Superconducting Microwave Components
Phys. Rev. Applied 15, 064013 (2021), DOI: 10.1103/PhysRevApplied.15.064013井口憲幸、沼田秀昭、 田中雅光、岡本浩一郎、田中貴久、内田建、石黒仁輝、 阪本利司、多田宗弘
200nm-pitched, Superconducting Nb Interconnects for Cryo-CMOS Application
2024 International Interconnect Technology Conference (IITC2024), San Jose, California, Session 8_4田中雅光、北川佳廣、佐藤哲朗、山本剛
High-Frequency Operation of Low-Power Single-Flux-Quantum Circuits Fabricated Using 250 A/cm2 Nb/AlOx/Nb Planarization Process
2023 International Conference on IC Design and Technology (ICICDT), Tokyo, Japan, 2023, pp. 84-87田中貴久、内田建、岡本浩一郎、多田宗弘
Stochastic Modeling of Cryogenic and Room Temperature Operation of ReRAM
35th International Microprocesses and Nanotechnology Conference, JR Hotel Clement Tokushima, 2022/11/8-11田中雅光、北川佳廣、佐藤哲朗、山本剛
Design and Fabrication of Extremely Low-Power Single-Flux-Quantum Circuits toward Quantum Bit Control
Applied Superconductivity Conference 2022, Hawaii Convention Center, Honolulu, 2022/10/23-28富田 祐永、上野洋典、谷本輝夫、田中雅光、井上弘士、中村宏
通信量に着目した QAOA 向け極低温 NISQ コンピューティングのアーキテクチャ検討
情報処理学会第242回 システム・アーキテクチャ研究発表会、ハイブリッド開催、2022/10/11-12Yasunari Suzuki, Takanori Sugiyama, Tomochika Arai, Wang Liao, Koji Inoue, Teruo Tanimoto
Q3DE: A Fault-Tolerant Quantum Computer Architecture for Multi-Bit Burst Errors by Cosmic Rays
55th IEEE/ACM International Symposium on Microarchitecture, the Westin Chicago River North, 2022/10/4宮尾知寿、今西創生、田中貴久、内田建、市川雅幸、中川修哉、石黒仁揮、阪本利司、多田宗弘
65-nm CMOS の 4.2 K 動作における過渡特性
2022年第83回応用物理学会秋季学術講演会、ハイブリッド開催、2022/9/20-23寺井弘高、猪股邦弘、小林篤、芳中大樹、小玉剛、菱田有二、金鮮美、山下太郎、布施智子、吉原文樹、仙場浩一
Si (100)基板上に成長したTiN薄膜の均一性評価
2022年第83回応用物理学会秋季学術講演会、ハイブリッド開催、2022/9/20-23増井翔、小嶋崇文、牧瀬圭正、小川英夫、大西利和、鵜澤佳徳
周波数コンバータを用いたマイクロ波帯アイソレータの原理確認実験
2022年第83回応用物理学会秋季学術講演会、ハイブリッド開催、2022/9/20-23石黒仁揮
Device characterization/ Device modelling cryogenic PDK
NEXT GENERATION QUANTUM COMPUTING、ハイブリッド開催、2022/8/29-30市川雅幸
Monitoring technique of self-heating in bulk MOSFETs at cryogenic temperatures
NEXT GENERATION QUANTUM COMPUTING、ハイブリッド開催、2022/8/29-30市川雅幸、田中貴久、内田建、宮尾知寿、多田宗弘、石黒仁揮
In Situ Monitoring Technique of Self-Heating in Bulk MOSFETs at Cryogenic Temperatures using Subthreshold Current
IEEE Latin American Electron Devices Conference 2022、ハイブリッド開催、2022/7/4-6岡本浩一郎、田中貴久、宮村信、 石黒仁揮、内田建、阪本利司、多田宗弘
Cryogenic CMOS Performance Analysis Including BEOL Characteristics at 4K for Quantum Controller Application
IITC 2022、ハイブリッド開催、 2022/6/27-30宮尾知寿、田中貴久、今西創生、市川雅幸、中川修哉、石黒仁揮、阪本利司、多田宗弘、内田建
Enhanced Drain Current in Transient Mode due to Long Ionization Time of Shallow Impurities at 4 K in 65-nm bulk Cryo CMOS Transistors
80th Device Research Conference、ハイブリッド開催、2022/6/26-29田中雅光、北川佳廣、佐藤哲朗、山本剛
量子ビット制御に向けた250A/cm2低臨界電流密度プロセスによる単一磁束量子回路の設計
第69回応用物理学会春季学術講演会、オンライン開催、2022/3/22-26水野皓介、竹中崇了、Imran Mahboob、齊藤志郎
超伝導共振器中のボソニック量子ビットに関する最適操作ゲート忠実度の数値的評価
日本物理学会 第77回年次大会、オンライン開催、2022/3/17朝永顕成、宮永崇史、 伊藤輝、 向井寛人、蔡兆申
Ultrastrong tunable coupler between superconducting LC resonators
APS March Meeting 2022、オンライン開催、2022/3/14-18L. V. Abdurakhimov、I. Mahboob、樋田啓、角柳孝輔、松崎雄一郎、齊藤志郎
Detection of TLS defects coupled to a c-shunt flux qubit via critical-current fluctuations
APS March Meeting 2022、オンライン開催、2022/3/14-18Ivan Iakoupov、越野和樹
Saturable Purcell filter for circuit QED
APS March Meeting 2022、オンライン開催、2022/3/14-18Makoto Negoro, Kazuhisa Ogawa, Takefumi MIYOSHI, Hidehisa Shiomi, Shinichi Morisaka, Mitsuki Kobachi, Kazuma Moriuch, Ryohei Niwase, Yuta Kawai, Keisuke Koike, Satoshi Funada, Shuhei Tamate, Yutaka Tabuchi, Yasunobu Nakamura
Superconducting qubit control with a system of an integrated microwave board and FPGA
APS March Meeting 2022、オンライン開催、2022/3/14-18鵜澤佳徳、小嶋崇文、牧瀬 圭正、川上彰、上月 雄人、増井翔、単文磊
Development status of an SIS-mixer-based amplifier
The 22nd East Asia Submillimeter-wave Receiver Workshop、オンライン開催、 2021/11/25-26増井翔 、小嶋崇文、鵜澤佳徳、小川英夫、大西利和
Proof-of-concept experiment on a novel microwave circulator
The 22nd East Asia Submillimeter-wave Receiver Workshop、オンライン開催、 2021/11/25-26増井翔、小嶋崇文、鵜澤佳徳、小川英夫、大西利和
アップ/ダウンコンバート Mixer を用いた Isolator のための原理確認実験
日本天文学会2021年秋季年会、オンライン開催、 2021/9/13-15岡本浩一郎、田中貴久、宮村信、阪本利司、石黒仁揮、内田建、多田宗弘
Cryogenic Operation of NanoBridge at 4K for Controlling Qubit
2021 International Conference on Solid State Devices and Materials、オンライン開催、2021/9/6-9L. V. Abdurakhimov、Imran Mahboob、樋田啓、角柳孝輔、松崎雄一郎、齊藤志郎
Spectroscopy of high-frequency TLS defects in superconducting qubits using a spin-locking pulse sequence
APS March Meeting 2021、オンライン開催、2021/3/15-19増井翔、小嶋崇文、牧瀬圭正、小川英夫、大西利和、鵜澤佳徳
Concept of a novel microwave isolator for a large integrated circuit
The Applied Superconductivity Conference 2022、ハワイコンベンションセンター、2022/10/23-28小嶋崇文、鵜澤佳徳、増井翔、上月雄人、藤井泰範、牧瀬 圭正、単文磊
Microwave performance of an SIS-based amplifier with a millimeter-wave isolator
The Applied Superconductivity Conference 2022、ハワイコンベンションセンター、2022/10/23-28増井翔、小川英夫、大西利和、牧瀬圭正、小嶋崇文、鵜澤佳徳
Proof-of-concept experiment on a novel microwave circulator based on frequency converters
32nd International Symposium on Space Terahertz Technology (ISSTT 2022) 、バエサ公会堂（アンダルシア）、2022/10/16-20小嶋崇文、鵜澤佳徳、増井翔、上月雄人、藤井泰範、牧瀬圭正、
Noise temperature and S-parameter measurements of an SIS-based microwave amplifier
32nd International Symposium on Space Terahertz Technology (ISSTT 2022) 、バエサ公会堂（アンダルシア）、2022/10/16-20竹中崇了、 Imran Mahboob、水野皓介、久保毅幸、佐伯学行、齊藤志郎
High-Q Superconducting 3D Cavities for Bosonic Codes
International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)、オンライン開催、2021/12/14-17水野皓介、 Imran Mahboob、竹中崇了、齊藤志郎
Numerical Investigation of Gate Fidelity Using Optimal Control Theory on Bosonic Codes in a Circuit-QED System
International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)、オンライン開催、2021/12/14-17Leonid Abdurakhimov、Imran Mahboob、樋田啓、角柳孝輔、松崎雄一郎、齊藤志郎
A novel technique for the spectroscopy of parasitic defects in superconducting qubits
International Symposium on Superconductivity (ISS2022)、ハイブリッド開催、2022/11/29-12/1蔡兆申
Recent progress in superconducting quantum information
Virtual 量子生命情報ワークショップ2022、オンライン開催、2022/10/12-14山口愛子
Recent Progress in Quantum annealing machine using Kerr-Parametric Oscillators
2022 International Conference on Solid State Devices and Materials、オンライン開催、2022/9/26-29多田宗弘
Challenge and Opportunity of Low-power Nonvolatile FPGA using NanoBridge for Cryogenic Quantum Controller
2022 International Conference on Solid State Devices and Materials、オンライン開催、2022/9/26-29内田建、宮尾知寿、田中貴久
Device characterization for cryogenic CMOS, investigating self heating phenomena
NEXT GENERATION QUANTUM COMPUTING、ハイブリッド開催、2022/8/29-30野口篤史
Hybrid quantum systems with trapped electrons via superconducting circuits
NEXT GENERATION QUANTUM COMPUTING、ハイブリッド開催、2022/8/29-30Leonid Abdurakhimov、Imran Mahboob、樋田啓、角柳孝輔、松崎雄一郎、齊藤志郎
Detection of high-frequency defects in superconducting qubits
SQA Conference 2022、ハイブリッド開催、2022/8/25-28鵜澤佳徳、小嶋崇文、単文磊、牧瀬圭正、Gonzalez Alvaro、関根徳彦
Research and development toward ALMA upgrades
International Symposium on Future Trends of Terahertz Semiconductor Technologies 2022(TST2022)、オンライン開催、2022/3/6蔡兆申
Planar integration of superconducting qubits
ISQNS 2022 International Symposium on Quantum Nano Science、オンライン開催、2022/1/13蔡兆申
Superconducting quantum computer and its future issue
14th Pacific Rim Conference on Ceramic and Glass Technology (PACRIM 14)、オンライン開催、2021/12/13-16蔡兆申