Publications | C2Lab - Cryogenic Computing Laboratory

Research record

A chronological index of C2Lab publications across superconducting devices, computing architectures, and design automation.

2025 Superconductor Science and Technology True stochastic number generator using adiabatic quantum-flux-parametron logic Wenhui Luo, Olivia Chen, Nobuyuki Yoshikawa, Naoki Takeuchi Journal →
2025 Proceedings of the 39th ACM International Conference on Supercomputing Graph Convolutional Network Acceleration Using Adiabatic Superconductor Josephson Devices Zhengang Li, Hongwu Peng, Xuan Shen, Masoud Zabihi, Xi Xie, Geng Yuan, Yanzhi Wang, Olivia Chen, Caiwen Ding Conference →
2025 IEEE Transactions on Applied Superconductivity Electrostatic Gate-Tunable Josephson Junctions in JoSIM: Modeling, Simulation, and I--V Characterization Johannes A Delport, Olivia Chen Journal →
2025 IEICE Transactions on Electronics Design and Implementation of Energy-Efficient Majority-Logic-Based Approximate Adders Using Adiabatic Quantum-Flux-Parametron Technology Mengmeng Wang, Olivia Chen, Nobuyuki Yoshikawa Journal →
2024 Superconductor Science and Technology SuperSIM: a comprehensive benchmarking framework for neural networks using superconductor Josephson devices Guangxian Zhu, Yirong Kan, Renyuan Zhang, Yasuhiko Nakashima, Wenhui Luo, Naoki Takeuchi, Nobuyuki Yoshikawa, Olivia Chen Journal →
2024 2024 Design, Automation & Test in Europe Conference & Exhibition (DATE) SuperFlow: A Fully-Customized RTL-to-GDS Design Automation Flow for Adiabatic Quantum-Flux-Parametron Superconducting Circuits Yanyue Xie, Peiyan Dong, Geng Yuan, Zhengang Li, Masoud Zabihi, Chao Wu, Sung-En Chang, Xufeng Zhang, Xue Lin, Caiwen Ding, others Conference →
2024 2024 IEEE 40th International Conference on Computer Design (ICCD) SupeRBNN: A Randomized Binary Neural Network Using Adiabatic Superconductor Josephson Devices Zhengang Li, Geng Yuan, Yanyue Xie, Peiyan Dong, Masoud Zabihi, Yanzhi Wang, Nobuyuki Yoshikawa, Devesh Tiwari, Olivia Chen, Geng Yuan, Yanyue Xie, Peiyan Dong, Masoud Zabihi, Yanzhi Wang, Nobuyuki Yoshikawa, Devesh Tiwari, Olivia Chen Conference →
2024 Proceedings of the 61st ACM/IEEE Design Automation Conference Late Breaking Result: AQFP-aware Binary Neural Network Architecture Search Zhengang Li, Xuan Shen, Geng Yuan, Masoud Zabihi, Tomoharu Yamauchi, Yanzhi Wang, Olivia Chen Conference →
2024 Superconductor Science and Technology Dual-mode neuron design with deterministic and non-deterministic operations using adiabatic superconductor devices Tomoharu Yamauchi, Naoki Takeuchi, Nobuyuki Yoshikawa, Hao San, Olivia Chen Journal →
2024 IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems Buffer and Splitter Insertion for Adiabatic Quantum-Flux-Parametron Circuits Rongliang Fu, Mengmeng Wang, Yirong Kan, Olivia Chen, Nobuyuki Yoshikawa, Bei Yu, Tsung-Yi Ho Journal →
2023 Proceedings of the 56th Annual IEEE/ACM International Symposium on Microarchitecture SupeRBNN: Randomized binary neural network using adiabatic superconductor Josephson devices Zhengang Li, Geng Yuan, Tomoharu Yamauchi, Zabihi Masoud, Yanyue Xie, Peiyan Dong, Xulong Tang, Nobuyuki Yoshikawa, Devesh Tiwari, Yanzhi Wang, others Conference →
2023 Applied Physics Letters Sigmoid function generator using stochastic adiabatic superconductor logic Wenhui Luo, Olivia Chen, Nobuyuki Yoshikawa, Naoki Takeuchi Journal →
2023 IEEE Transactions on Applied Superconductivity Results from the ColdFlux superconductor integrated circuit design tool project Coenrad J Fourie, Kyle Jackman, Johannes Delport, Lieze Schindler, Tessa Hall, Pascal Febvre, Lucas Iwanikow, Olivia Chen, Christopher L Ayala, Nobuyuki Yoshikawa, others Journal →
2023 2023 IEEE 5th International Conference on Artificial Intelligence Circuits and Systems (AICAS) Performance assessment of an extremely energy-efficient binary neural network using adiabatic superconductor devices Olivia Chen, Zhengang Li, Tomoharu Yamauchi, Yanzhi Wang, Nobuyuki Yoshikawa Conference →
2023 IEICE Technical Report; IEICE Tech. Rep. Majority-Logic-Based Approximate Adders Using Adiabatic Quantum-Flux-Parametron Mengmeng Wang, Olivia Chen, Nobuyuki Yoshikawa Journal →
2023 IEEE Transactions on Emerging Topics in Computing Extremely energy-efficient non-linear function approximation framework using stochastic superconductor devices Olivia Chen, Renyuan Zhang, Wenhui Luo, Yanzhi Wang, Nobuyuki Yoshikawa Journal →
2023 2023 IEEE/ACM International Conference on Computer Aided Design (ICCAD) Exact logic synthesis for reversible quantum-flux-parametron logic Rongliang Fu, Olivia Chen, Nobuyuki Yoshikawa, Tsung-Yi Ho Conference →
2023 2023 IEEE/ACM International Conference on Computer Aided Design (ICCAD) DLPlace: A delay-line clocking-based placement framework for AQFP circuits Rongliang Fu, Olivia Chen, Bei Yu, Nobuyuki Yoshikawa, Tsung-Yi Ho Conference →
2023 IEICE Technical Report; IEICE Tech. Rep. Design and Implementation of Power Consumption Reduction Binary Neural Networks Using Adiabatic Quantum-Flux-Parametron Logic Tomoharu Yamauchi, Hao San, Nobuyuki Yoshikawa, Olivia Chen Journal →
2023 2023 21st IEEE Interregional NEWCAS Conference (NEWCAS) Design and Implementation of an FFT-Based Neural Network Accelerator Using Rapid Single-Flux-Quantum Technology Olivia Chen, Yanzhi Wang, Fei Ke, Nobuyuki Yoshikawa Conference →
2023 2023 Design, Automation & Test in Europe Conference & Exhibition (DATE) BOMIG: A majority logic synthesis framework for AQFP logic Rongliang Fu, Junying Huang, Mengmeng Wang, Yoshikawa Nobuyuki, Bei Yu, Tsung-Yi Ho, Olivia Chen Conference →
2023 2023 60th ACM/IEEE Design Automation Conference (DAC) Algorithm-software-hardware co-design for deep learning acceleration Zhengang Li, Yanyue Xie, Peiyan Dong, Olivia Chen, Yanzhi Wang Conference →
2023 IEICE Conferences Archives A Study on the Neural Network Processing Units Using Adiabatic Quantum-Flux-Parametron Superconducting Technology Mengmeng Wang, Olivia Chen, Nobuyuki Yoshikawa Conference →
2023 arXiv preprint arXiv:2307.12216 A Life-Cycle Energy and Inventory Analysis of Adiabatic Quantum-Flux-Parametron Circuits Masoud Zabihi, Yanyue Xie, Zhengang Li, Peiyan Dong, Geng Yuan, Olivia Chen, Massoud Pedram, Yanzhi Wang Journal →
2023 Proceedings of the 28th Asia and South Pacific Design Automation Conference A global optimization algorithm for buffer and splitter insertion in adiabatic quantum-flux-parametron circuits Rongliang Fu, Mengmeng Wang, Yirong Kan, Nobuyuki Yoshikawa, Tsung-Yi Ho, Olivia Chen Conference →
2022 Proceedings of the 59th ACM/IEEE Design Automation Conference TAAS Peiyan Dong, Yanyue Xie, Hongjia Li, Mengshu Sun, Olivia Chen, Nobuyuki Yoshikawa, Yanzhi Wang Conference →
2022 Scientific reports Scalable true random number generator using adiabatic superconductor logic Wenhui Luo, Olivia Chen, Nobuyuki Yoshikawa, Naoki Takeuchi Journal →
2022 2022 IEEE 35th International System-on-Chip Conference (SOCC) Design and implementation of stochastic neural networks using superconductor Quantum-Flux-Parametron devices Olivia Chen, Yanzhi Wang, Renyuan Zhang, Nobuyuki Yoshikawa Conference →
2022 2022 IEEE 11th Global Conference on Consumer Electronics (GCCE) A study on the efficient design of adders using adiabatic quantum-flux-parametron circuits Tomoharu Yamauchi, Hao San, Nobuyuki Yoshikawa, Olivia Chen Conference →
2022 2022 IEEE 11th Global Conference on Consumer Electronics (GCCE) A Neural Network Processing Unit Using Adiabatic Quantum-Flux-Parametron Superconducting Technology Mengmeng Wang, Olivia Chen, Nobuyuki Yoshikawa Conference →
2021 2021 Design, Automation & Test in Europe Conference & Exhibition (DATE) Towards aqfp-capable physical design automation Hongjia Li, Mengshu Sun, Tianyun Zhang, Olivia Chen, Nobuyuki Yoshikawa, Bei Yu, Yanzhi Wang, Yibo Lin Conference →
2021 IEEE Transactions on Applied Superconductivity Low-autocorrelation random number generator based on adiabatic quantum-flux-parametron logic Wenhui Luo, Naoki Takeuchi, Olivia Chen, Nobuyuki Yoshikawa Journal →
2021 IEEE Transactions on Applied Superconductivity Logic synthesis of sequential logic circuits for adiabatic quantum-flux-parametron logic Ro Saito, Christopher L Ayala, Olivia Chen, Tomoyuki Tanaka, Tomohiro Tamura, Nobuyuki Yoshikawa Journal →
2021 IEICE Technical Report; IEICE Tech. Rep. Design and Evaluation of Random Number Generators Based on Non-Adiabatic Quantum-Flux-Parametron Gates Wenhui Luo, Naoki Takeuchi, Olivia Chen, Nobuyuki Yoshikawa Journal →
2021 IEEE Transactions on Applied Superconductivity Demonstration of a 47.8 GHz high-speed FFT processor using single-flux-quantum technology Fei Ke, Olivia Chen, Yanzhi Wang, Nobuyuki Yoshikawa Journal →
2020 電子情報通信学会技術研究報告= IEICE technical report: 信学技報超伝導エレクトロニクス Ro Saito, Christopher L Ayala, Olivia Chen, Tomoyuki Tanaka, Tomohiro Tamura, Nobuyuki Yoshikawa Journal →
2020 電子情報通信学会技術研究報告= IEICE technical report: 信学技報超伝導エレクトロニクス Wenhui Luo, Naoki TAKEUCHI, Olivia Chen, Nobuyuki Yoshikawa Journal →
2020 IEICE Technical Report; IEICE Tech. Rep. Methodology for Automating Data Feedback Circuit Synthesis for a 4-bit Counter in Adiabatic Quantum-Flux-Parametron Logic Ro Saito, Christopher L Ayala, Olivia Chen, Tomoyuki Tanaka, Tomohiro Tamura, Nobuyuki Yoshikawa Journal →
2020 IEICE Technical Report Improvement for autocorrelation of adiabatic quantum-flux-parametron based random number generator 陳オリビア Journal →
2020 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 Design of an SFQ convolutional computation processor for convolutional neural network Fei Ke, Ao Ren, Yanzhi Wang, Olivia Chen, Nobuyuki Yoshikawa Yuki Yamanashi Journal →
2020 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 Design and Evaluation of a 1-bit Random Number Generator using Adiabatic Quantum-flux-parametron Logic LUO Wenhui, Naoki TAKEUCHI, Olivia Chen, Nobuyuki Yoshikawa Journal →
2020 Proceedings of the 39th International Conference on Computer-Aided Design ASAP: An analytical strategy for AQFP placement Yi-Chen Chang, Hongjia Li, Olivia Chenht, Yanzhi Wang, Nobuyuki Yoshikawa, Tsung-Yi Ho Conference →
2020 Superconductor Science and Technology A semi-custom design methodology and environment for implementing superconductor adiabatic quantum-flux-parametron microprocessors Christopher L Ayala, Ro Saito, Tomoyuki Tanaka, Olivia Chen, Naoki Takeuchi, Yuxing He, Nobuyuki Yoshikawa Journal →
2019 2019 IEEE Computer Society Annual Symposium on VLSI (ISVLSI) IDE development, logic synthesis and buffer/splitter insertion framework for adiabatic quantum-flux-parametron superconducting circuits Ruizhe Cai, Xiaolong Ma, Olivia Chen, Ao Ren, Ning Liu, Nobuyuki Yoshikawa, Yanzhi Wang Conference →
2019 IEEE Transactions on Applied Superconductivity Fabrication of adiabatic quantum-flux-parametron integrated circuits using an automatic placement tool based on genetic algorithms Tomoyuki Tanaka, Christopher L Ayala, Qiuyun Xu, Ro Saito, Nobuyuki Yoshikawa Journal →
2019 電気学会研究会資料 Development of Topdown Environment for Adiabatic Quantum Flux Parametron Circuits Ro Saito, Christopher AYALA, Olivia Chen, TOMOYUKI TANAKA, Nobuyuki Yoshikawa Journal →
2019 IEEE Transactions on Applied Superconductivity Design of adiabatic quantum-flux-parametron register files using a top-down design flow Olivia Chen, Ro Saito, Tomoyuki Tanaka, Christopher L Ayala, Naoki Takeuchi, Nobuyuki Yoshikawa Journal →
2019 IEEE Transactions on Applied Superconductivity ColdFlux superconducting EDA and TCAD tools project: Overview and progress Coenrad Johann Fourie, Kyle Jackman, Matthys M Botha, Sasan Razmkhah, Pascal Febvre, Christopher Lawrence Ayala, Qiuyun Xu, Nobuyuki Yoshikawa, Erin Patrick, Mark Law, others Journal →
2019 2019 IEEE International Superconductive Electronics Conference (ISEC) AQFPTX: Adiabatic quantum-flux-parametron timing eXtraction tool Christopher L Ayala, Olivia Chen, Nobuyuki Yoshikawa Conference →
2019 IEICE Technical Report; IEICE Tech. Rep. Analysis of Malfunction of an Adiabatic Quantum Flux Parametron 16-bit Kogge Stone Adder Tomoyuki Tanaka, Christopher L Ayala, Olivia Chen, Ro Saito, Nobuyuki Yoshikawa Journal →
2019 Scientific reports Adiabatic quantum-flux-parametron: Towards building extremely energy-efficient circuits and systems Olivia Chen, Ruizhe Cai, Yanzhi Wang, Fei Ke, Taiki Yamae, Ro Saito, Naoki Takeuchi, Nobuyuki Yoshikawa Journal →
2019 IEICE Technical Report; IEICE Tech. Rep. A Study on Majority Synthesis for Adiabatic Superconducting Logic Olivia Chen, Ruizhe Cai, Yanzhi Wang, Naoki Takeuchi, Nobuyuki Yoshikawa Journal →
2019 Proceedings of the 46th International Symposium on Computer Architecture A stochastic-computing based deep learning framework using adiabatic quantum-flux-parametron superconducting technology Ruizhe Cai, Ao Ren, Olivia Chen, Ning Liu, Caiwen Ding, Xuehai Qian, Jie Han, Wenhui Luo, Nobuyuki Yoshikawa, Yanzhi Wang Conference →
2019 Proceedings of the 2019 Great Lakes Symposium on VLSI A majority logic synthesis framework for adiabatic quantum-flux-parametron superconducting circuits Ruizhe Cai, Olivia Chen, Ao Ren, Ning Liu, Caiwen Ding, Nobuyuki Yoshikawa, Yanzhi Wang Conference →
2019 IEEE Transactions on Applied Superconductivity A feedback-friendly large-scale clocking scheme for adiabatic quantum-flux-parametron logic datapaths Naoki Takeuchi, Christopher Lawrence Ayala, Olivia Chen, Nobuyuki Yoshikawa Journal →
2019 2019 IEEE 37th International Conference on Computer Design (ICCD) A buffer and splitter insertion framework for adiabatic quantum-flux-parametron superconducting circuits Ruizhe Cai, Olivia Chen, Ao Ren, Ning Liu, Nobuyuki Yoshikawa, Yanzhi Wang Conference →
2018 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 Investigation of Multi-Phase Timing Windows for Adiabatic Quantum-Flux-Parametron Logic Christopher AYALA, Olivia Chen, Naoki TAKEUCHI, Yuki Yamanashi, Nobuyuki Yoshikawa Journal →
2018 IEICE Conferences Archives Design and Evaluation of Deep Learning Accelerators Using Superconductor Logic Families Qiuyun Xu, Yanzhi Wang, Naoki Takeuchi, Nobuyuki Yoshikawa Conference →
2018 IEICE Conferences Archives Comprehensive Automated Timing Extraction Methodology for Characterizing an Adiabatic Quantum-Flux-Parametron Logic Cell Library Christopher L Ayala, Olivia Chen, Nobuyuki Yoshikawa Conference →
2017 IEEE Transactions on Applied Superconductivity Synthesis flow for cell-based adiabatic quantum-flux-parametron structural circuit generation with HDL back-end verification Qiuyun Xu, Christopher L Ayala, Naoki Takeuchi, Yuki Murai, Yuki Yamanashi, Nobuyuki Yoshikawa Journal →
2017 Research publication Recent research developments of adiabatic quantum-flux-parametron circuitstechnology toward energy-efficient highperformance computing Nobuyuki Yoshikawa, N Takeuchi, CL Ayala, Q Xu, K Fang, N Tsuji, F China, Y Murai, T Ortlepp, Y Yamanashi Journal →
2016 IEICE Conferences Archives Synthesis Flow for Cell-Based Adiabatic Quantum-Flux-Parametron Logic Circuit Generation Qiuyun Xu, Christopher L Ayala, Yuki Murai, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa Conference →
2016 IEICE Conferences Archives Recent Progress on the Development of EDA Tools for Adiabatic Quantum-Flux-Parametron VLSI Circuits Christopher L Ayala, Qiuyun Xu, Yuki Murai, Ro Saito, Naoki Takeuchi, Yuki Yamanashi, Thomas Ortlepp, Nobuyuki Yoshikawa Conference →
2016 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 HDL-based Modeling Approach for Adiabatic Superconductor Logic Simulation Qiuyun Xu, Christopher L AYALA, Naoki Takeuchi Journal →
2016 電子情報通信学会総合大会講演論文集 C-8-12 HDL-based Modeling Approach for Digital Simulation of Adiabatic Quantum Parametron Logic Xu Qiuyun, L Ayala Christopher, Takeuchi Naoki, Yamanashi Yuki, Yoshikawa Nobuyuki Journal →
2015 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 Timing extraction for logic simulation of VLSI adiabatic quantum-flux-parametron circuits Christopher L Ayala, Naoki Takeuchi, Qiuyun Xu Journal →
2015 電子情報通信学会技術研究報告= IEICE technical report: 信学技報 Design of an Extremely Energy-Efficient Hardware Algorithm Using Adiabatic Superconductor Logic and Its Digital Modeling Approach XU Qiuyun, Christopher L AYALA, Naoki TAKEUCHI Journal →
2015 2015 15th International Superconductive Electronics Conference (ISEC) Design of an extremely energy-efficient hardware algorithm using adiabatic superconductor logic Q Xu, Y Yamanashi, CL Ayala, N Takeuchi, T Ortlepp, N Yoshikawa Conference →
2015 Research publication 15p-4B-2 Christopher L Ayala, Naoki Takeuchi, Qiuyun Xu, Yuki Murai, Yuki Yamanashi, Thomas Ortlepp, Nobuyuki Yoshikawa Journal →
2014 IEEE Transactions on Applied Superconductivity High-speed demonstration of bit-serial floating-point adders and multipliers using single-flux-quantum circuits Xizhu Peng, Qiuyun Xu, Taichi Kato, Yuki Yamanashi, Nobuyuki Yoshikawa, Akira Fujimaki, Naofumi Takagi, Kazuyoshi Takagi, Mutsuo Hidaka Journal →
2014 IEEE Transactions on Applied Superconductivity Demonstration of bit-serial sfq-based computing for integer iteration algorithms Qiuyun Xu, Xizhu Peng, Thomas Ortlepp, Yuki Yamanashi, Nobuyuki Yoshikawa Journal →
2014 電子情報通信学会ソサイエティ大会講演論文集 C-8-8 Improvement of Computational Efficiency Collatz Conjecture Processors Xu Qiuyun, Peng Xizhu, Yamanashi Yuki, Yoshikawa Nobuyuki, Ortlepp Thomas Journal →
2013 電子情報通信学会総合大会講演論文集 C-8-22 Study on Power Dissipation of Collatz Conjecture Processors Based on SFQ circuits Xu Qiuyun, Yonezawa Yasuhiro, Yamanashi Yuki, Ito Nobuyuki Journal →
2013 2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Analysis of computational energy efficiency in single-flux-quantum electronics by implementing an integer-based hardware-algorithm Q Xu, Y Shimamura, Y Yamanashi, N Yoshikawa, T Ortlepp Conference →