News

[Recent Papars]all lists

  • N. Okada, T. Yamagami, N. Chauvet, Y. Ito, M. Hasegawa, M. Naruse: Theory of Acceleration of Decision-Making by Correlated Time Sequences, Complexity, Vol. 2022, Art. No. 5205580, August 2025 (link)

[NEWS!] Awarded by Grant-in-Aid for Transformative Research Areas(A). The project is entitled "Photonic Computing Highlighing Ultimate Nature of Light." [link]. (2022/6)

[Recent Papars]all lists

  • N. Asuke, N. Chauvet, A. Röhm, K. Kanno, A. Uchida, T. Niiyama, S. Sunada, R. Horisaki, and M. Naruse: Analysis of temporal structure of laser chaos by Allan variance, arXiv:2208.02961.(link)
  • H. Shinkawa, N. Chauvet, A. Röhm, T. Mihana, R. Horisaki, G. Bachelier, and M. Naruse: Conflict-free joint sampling for preference satisfaction through quantum interference, arXiv:2208.03082.(link)
  • R. Suda, M. Naruse, and R. Horisaki: Incoherent computer-generated holography, Optics Letters, Vol. 47, Issue 15, pp. 3844-3847, July 2022. (Selected as an Editor's Pick in Optics Letters) (doi)
  • T. Urushibara, N. Chauvet, S. Kochi, S. Sunada, K. Kanno, A. Uchida, R. Horisaki, and M. Naruse: Parallel bandit architecture based on laser chaos for reinforcement learning, Journal of Physics Communications, Vol. 6, No. 6, 065002, June 2022. (doi)
  • N. Fujita, N. Chauvet, A. Roehm, R. Horisaki, A. Li, M. Hasegawa, and M. Naruse: Efficient Pairing in Unknown Environments: Minimal Observations and TSP-based Optimization, IEEE Access, Vol. 10, pp. 57630-57640, May 2022. (doi)

[NEWS!] Associate Prof. Ryoichi Horisaki received Funai Information Technology Award.(2022/5/21) (link)

[NEWS!] Graduation thesis presentation completed! (2022/2/14-15)

  • Yuri Endo
  • Ryutaro Suda
  • Haruaki Tanaka

[NEWS!] Master Course graduation thesis presentation completed! (2022/1/31-2/2)

  • Takashi Urushibara

[Recent Papars]all lists

  • H. Suzui, K. Uchiyama, K. Takase, R. Nakagomi, L. Kono, K. Uchida, N. Chauvet, R. Horisaki, H. Hori, and M. Naruse: Double-probe atomic force microscopy for observing spatiotemporal dynamics in a photochromic thin film, Applied Physics Letters, Vol. 120, Issue 7, 071105, February 2022.(doi)
  • R. Horisaki, T. Aoki, Y. Nishizaki, A. Röhm, N. Chauvet, J. Tanida, and M. Naruse: Compressive propagation with coherence, Optics Letters, Vol. 47, Issue 3, pp. 613-616, January 2022.(doi)
  • Z. Duan, A. Li, N. Okada, Y. Ito, N. Chauvet, M. Naruse, and M. Hasegawa: User pairing using laser chaos decision maker for NOMA systems (doi)
  • H. Kanemasa, A. Li, Y. Ito, N. Chauvet, M. Naruse, and M. Hasegawa: Dynamic channel bonding in WLANs by hierarchical laser chaos decision maker (doi)
  • M. Shimomura, N. Chauvet, M. Hasegawa, and M. Naruse: Experimental demonstration of channel order recognition in wireless communications by laser chaos time series and confidence intervals (doi)
  • A. Oda, T. Mihana, K. Kanno, M. Naruse, and A. Uchida: Adaptive decision making using a chaotic semiconductor laser for multi-armed bandit problem with time-varying hit probabilities (doi)
  • R. Mito, K. Kanno, M. Naruse, and A. Uchida: Experimental demonstration of adaptive model selection based on reinforcement learning in photonic reservoir computing (doi)

[NEWS!] Mr. Tomoki Yamagami(D1) and Mr. Naoki Fujita(M1) of our laboratory received the Student Presentation Award at 2021 International Conference on Emerging Technologies for Communications (ICETC2021)! (2021/12/2)

[NEWS!] Presentations at 2021 International Conference on Emerging Technologies for Communications (ICETC2021)!

  • T. Yamagami, E. Segawa, N. Chauvet, A. Rohm, R. Horisaki, M. Naruse: Generation of one-dimensional random walks driven by quantum walks
  • N. Fujita, N. Chauvet, A. Rohm, R. Horisaki, A. Li, M. Hasegawa, M. Naruse: Proposal of efficient algorithms for large scale pairing
  • Y. Yamasaki, N. Shiga, S. Yasuda, K. Takizawa, M. Yoshida, M. Naruse: Proposal of time-synchronized random sequence generation based on Wireless Two-way Interferometry

[NEWS!] Presentation at International Symposium on Physics and Applications of Laser Dynamics 2021 (IS-PALD 2021) 

  • M. Naruse, A. Uchida, K. Uchiyama, and K. Akahane: Reinforcement learning by photonics (Invited)
  • A. Röhm, F. Stelzer, R. Vicente, I. Fischer, and S. Yanchuk: Folded-in-time deep neural networks: constructing and training a network with a single active element using feedback-modulated delay lines
  • T. Urushibara, N. Chauvet, A. Röhm, S. Kochi, S. Sunada, K. Kanno, A. Uchida, R. Horisaki, and M. Naruse: Parallel bandit architecture for reinforcement learning using chaotic laser time series
  • N. Asuke, N. Chauvet, A. Röhm, K. Kanno, A. Uchida, R. Horisaki, and M. Naruse: Analysis of the temporal structure of laser chaos by Allan variance
  • H. Shinkawa, N. Chauvet, G. Bachelier, S. Huant, A. Röhm, R. Horisaki, and M. Naruse: Ensuring stability in competitive decision making by quantum interference in orbital angular momentum of light)
  • H. Suzui, K. Uchiyama, K. Uchida, N. Chauvet, A. Röhm, R. Horisaki, H. Hori, and M. Naruse: Continuous observation of boundary formation on photochromic materials observed by double-probe AFM
  • K. Morijiri, T. Mihana, K. Kanno, M. Naruse, and A. Uchida: Decision making in the multi-armed bandit problem using chaotic temporal waveforms
  • T. Mihana, K. Kanno, M. Naruse, and A. Uchida: Photonic decision making for competitive multi-armed bandit problem using synchronized laser network
  • R. Iwami, T. Mihana, K. Kanno, M. Naruse, and A. Uchida: Photonic decision making using chaotic dynamics in a multi-mode semiconductor laser with optical feedback
  • Y. Arakawa, K. Uchiyama, Y. Hashimoto, K. Uchida, H. Suzui, M. Naruse, and H. Hori: History-dependent nano-photoisomerization by optical near-field in photochromic single crystals

[Recent Papars]all lists

  • T. Amakasu, N. Chauvet, G. Bachelier, S. Huant, R. Horisaki, and M. Naruse: Conflict-free collective stochastic decision making by orbital angular momentum entangled photons, arXiv:2107.00877 (link)
  • H. Suzui, K. Uchiyama, R. Nakagomi, L. Kono, K. Uchida, M. Naruse, and H. Hori: Boundary formation in photochromic diarylethene single crystals and its catastrophe theory modeling, Applied Physics Express, Vol. 14, No. 7, Article No. 075003, Jun. 2021. (doi)
  • Y. Yamasaki, N. Chauvet, N. Shiga, S. Yasuda, K. Takizawa, R. Horisaki, and M. Naruse: Delay-Bounded Wireless Network Based on Precise Time Synchronization Using Wireless Two-Way Interferometry, IEEE Access, Vol. 9, pp. 85084-85100, Jun. 2021. (doi)

[NEWS!] Mr. Mitsuhiko Shimomura (FY2020 Technical Staff) received an“Incentive award” in the Complex Communication Sciences (CCS)."Experimental demonstration of channel order recognition in wireless communications by laser chaos time series and confidence intervals"(2021/6/12)

[NEWS!] Dr. Roehm Andre has been appointed as a Project Researcher from the 1st of June 2021!

[NEWS!] Awarded by CNRS – University of Tokyo “Excellence Science” Joint Research Program.(2021/5)

[Recent Papars]all lists

  • D. Koyama, Y. Wang, N. Shiga, S. Yasuda, N. Chauvet, and M. Naruse: Low latency information transfer based on precision time synchronization via wireless interferometry, Nonlinear Theory and Its Applications, IEICE, Vol. 12, Issue 2, pp. 225-235, April 2021. (link)
  • K. Ehira, R. Horisaki, Y. Nishizaki, M. Naruse, and J. Tanida: Spectral speckle-correlation imaging, Applied Optics, Vol. 60, No. 8, pp. 2388-2392, March 2021.(doi)
  • S. Maeda, N. Chauvet, H. Saigo, H. Hori, G. Bachelier, S. Huant, and M. Naruse: Entangled and correlated photon mixed strategy for social decision making, Scientific Reports, Vol. 11, Article No. 4832, March 2021.(doi)
  • N. Narisawa, N. Chauvet, M. Hasegawa, and M. Naruse: Arm order recognition in multi-armed bandit problem with laser chaos time series, Scientific Reports, Vol. 11, Article No. 4459, February 2021.(doi)

[NEWS!] Graduation thesis presentation completed! (2021/2/7-9)

  • Takashi Amakasu
  • Sota Nakajima
  • Yusuke Yamasaki

[NEWS!] Dr. Ryoichi Horisaki has been appointed as an Associate Professor from the 1st of November 2020!

[NEWS!] Awarded by NEDO, Post 5G information and telecommunications system.(2020/10/27)

[NEWS!] Entangled published in Scientific Reports! "Entangled N-photon states for fair and optimal social decision making" (link)

[NEWS!] Featured in UTokyo Voices! "Intertwined approach lights up research"

[News] Dr. Nicolas Chauvet starts serving as an Assistant Professor from the 1st of April 2020!

[News] Dr. Serge Huant and Dr. Guillaume Bachelier from Univ Grenoble Alpes, France stay for collaborative research (2020.2.15-2020.2.29).

[NEWS!] Invited review article in IEICE Magazine 2020 March Issue "Decision making using photons" (PDF)

[NEWS!] Invited review article in Optical Aliance 2020 March Issue (link)

[NEWS!] Research on Shubert polynomial series generation using photochromism is published in Scientific Reports! (link)

[NEWS!] Member page updated.(2020/2/18)

[NEWS!] Graduation thesis presentation completed! (2020/2/12)

  • Naoki Narisawa "Order recognition of multi-armed bandit problem using chaotic laser time seres"
  • Daijiro Koyama "Information transfer based on wireless two-way interferometry"

[NEWS!]Keynote Presentation at SPIE Photonics West (Conference 11299: AI and Optical Data Sciences) on Feb 4, 2020. (slides)

[NEWS!] Chaos WiFi published in Scientific Reports! "Dynamic channel selection in wireless communications via a multi-armed bandit algorithm using laser chaos time series" (link)

[NEWS!] Mr. Naoki Narisawa (B4) of our laboratory received the Best Student Paper Award at International Conference 'The 8th Korea-Japan Joint Workshop on Complex Communication Sciences (KJCCS)'!

[NEWS!] Presentations at The 8th Korea-Japan Joint Workshop on Complex Communication Sciences (KJCCS2020)!

  • Order Recognition in Multi‐armed Bandit Problem with Chaotic Laser Time Series, Naoki Narisawa 1, Nicolas Chauvet 1, Mikio Hasegawa 2 and Makoto Naruse 1 (1 The University of Tokyo, Japan, 2 Tokyo University of Science, Japan)
  • Information network using precision time synchronization via wireless interferometry: delay tolerance and skew evaluations, Daijiro Koyama 1, Nobuyasu Shiga 2, Satoshi Yasuda 2, Nicolas Chauvet 1 and Makoto Naruse 1 (1 The University of Tokyo, Japan, 2 National Institute of Information and Communications Technology, Japan)
  • Channel selection in wireless communications by multi‐armed bandit algorithm using chaotic time series, Shungo Takeuchi 1, Makoto Naruse 2, Kazutaka Kanno 3, Atsushi Uchida 3 and Mikio Hasegawa 1 (1 Tokyo University of Science, Japan, 2 The University of Tokyo, Japan, 3 Saitama University, Japan)

[NEWS!] Mid term review of CREST project(PDF)

[NEWS!] Invited to Nature Research "Behavioural and Social Sciences" Team decision making by quantum light (link)

[NEWS!] Perspective paper at APL Photonics has been selected as the cover of September 2019 issue of the magazine!(link)

[Featured from recent papers!] APL Photonics Invited (2019)!, IEEE JSTQE Invited (2019)!, Entangled photon decision maker(Scientific Reports, 2019)!, Chaos GAN(Scientific Reports, 2019)!

[News] Dr. Andre Rohm from IFISC(Institute for Cross-Disciplinary Physics and Complex Systems), Spain stay for collaborative research (2019.11.18~2019.11.27)

[News] Dr. Serge Huant and Dr. Guillaume Bachelier from Univ Grenoble Alpes, France stay for collaborative research (2019.10.21~2019.11.1)

[News] 2019.5.19 Introductioin of the lab for the entrance exam of the graduate school(linkPoster

[Recent Papars]all lists

  • K. Kitayama, M. Notomi, M. Naruse, K. Inoue, S. Kawakami, and A. Uchida: Novel frontier of photonics for data processing - Photonic accelerator, APL Photonics, Vol. 4, No. 9, pp. 090901, September 2019. (doi)
  • M. Naruse, T. Matsubara, N. Chauvet, K. Kanno, T. Yang, A. Uchida: Generative adversarial network based on chaotic time series, Scientific Reports, Vol. 9, Article No. 12963, September 2019. (doi)
  • N. Chauvet, D. Jegouso, B. Boulanger, H. Saigo, K. Okamura, H. Hori, A. Drezet, S. Huant, G. Bachelier, and M. Naruse: Entangled-photon decision maker, Scientific Reports, Vol. 9, Article number 12229 (2019). (doi)
  • M. Naruse, N. Chauvet, A. Uchida, A. Drezet, G. Bachelier, S. Huant, and H. Hori: Decision-Making Photonics: Solving Bandit Problems Using Photons, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 26, No. 1, Article No. 7700210 (2020). (doi)
  • R. Homma, S. Kochi, T. Niiyama, T. Mihana, Y. Mitsui, K. Kanno, A. Uchida, M. Naruse, and S. Sunada: On-chip photonic decision maker using spontaneous mode switching in a ring laser, Scientific Reports, Vol. 9, Article number 9429 (2019). (doi)
  • H. Suzui, K. Uchiyama, R. Nakagomi, H. Saigo, K. Uchida, M. Naruse, and H. Hori: Generation of Schubert polynomial series by nanophotonics, arXiv:1907.05625 (link)
  • H. Saigo, M. Naruse, K. Okamura, H. Hori, and I. Ojima: Analysis of Soft Robotics Based on the Concept of Category of Mobility, Complexity, Vol. 2019, pp. 1490541 (2019). (doi)

[Recent conference presentations]all lists

  • M. Naruse, N. Chauvet, S. Huant, S. Sunada, A. Uchida, and H. Hori: Decision making using classical and quantum light, AI and Optical Data Science conference, SPIE Photonics West, February 2020 (Keynote)
  • N. Chauvet, M. Ethis de Corny, G. Laurent, A. Drezet, G. Nogues, G. Dantelle, T. Gacoin, A. Uchida, H. Hori, S. Huant, G. Bachelier, M. Naruse: Single hybrid plasmonic structures for efficient photon pair production at the nanoscale, The 10th International Conference on Metamaterials, Photonic Crystals and Plasmonics (2019.7.23, Lisbon) (Invited)
  • M. Naruse, N. Chauvet, A. Uchida, S. Huant, H. Hori: Decision Making by Photons, Conference Proceedings of The 15th International Conference on Multimedia Information Technology and Applications (MITA2019), Keynote Speech 4 (Ho Chi Minh City, 29019.6.29) (Keynote)

     

Past news

Concept



System design utilizing light and natural systems

Our goal is to consider the logical structure of the natural world, including light, from the viewpoints of system informatics, appropriate mathematical theory of physical systems and system architecture, and to develop applied technology by means of optoelectronic devices, laser chaos, nano optics, etc. Research is carried on regarding innovative computing such as decision making algorithms and metrics as well as the creation of new functionalities such as physics-based security in simultaneous configurations.

For students: This laboratory is established since April 2019, and is actively engaged in research, including the CREST project. We hope that you will be able to take part in our graduate school (master's course and doctoral course). We are keenly interested in creating new and distinctive research based on our own ideas, not limited to the themes introduced on this website. Let's open up new research areas!

RESEARCH



1) AI Photonics - Decision Making by Photons-

This project physically resolves decision making problem, which is one of the most important elements in information and communications technology (ICT) including artificial intelligence (AI), by utilizing the unique physical nature of photons. Specifically, diffraction-limit-free nano-scale photonic decision making is investigated by utilizing photochromic materials and near-field photons. Furthermore, ultrafast decision making is developed whereby the ultrahigh-bandwidth nature of photons and chaotic dynamics of lasers are exploited. Meanwhile, applications such as instantaneous channel assignment in communications and ultrafast arbitration for solution searching are studied to fully benefit from the potential of our photonic decision making technologies. This topic is funded by JST CREST.

References: Journal of the Japanese Society for Artificial Intelligence (2018.9), Scientific Reports (2017), Scientific Reports (2018), arXiv

2) Architectural Foundamentals for Functional Systems

The extensive progress of ICT and AI imposes further demands to optics and phtonics while the emergence of new device technologies require novel design of system architectures and data processing technologies. We will explore innovative architectures for arbitration-free information network by precision synchronization technologies, physical securities by nanoscale complex patterns, etc.

3) Natural Computing / Natural Transformation Design

Toward developing computing using natural processes, theoretical fundamentals are important, which is also the key concept of our department highlighting the importance of intertwining physical world and information world. For such purposes, we will explore the concept and the design fundamentals, what we call "Natural Transformation Design" by utilizing modern mathematics including category theory as well as model theories based on empirical findings.

References: Journal of the Japan Society for Artificial Inteligence (2018.9), International Journal of Information Technology & Decision Making (2018) , Philosophies (2017), Journal of Optical Society of Japan (2018), Complexity (2019)

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