2. Research
  3. Researcher's Profile
  4. Katsuhiro NISHINARI

Researcher's Profile

  • Professor
  • Katsuhiro NISHINARI
  • Mathematical Physics of Emergent Systems
  • Progressive Logistic Science


March 1995 PhD, School of Engineering, The University of Tokyo (UTokyo)
April 1997 Associate Professor, Faculty of Engineering, Yamagata University
April 1999 Associate Professor, Faculty of Science and Engineering, Ryukoku University
April 2005 Associate Professor, School of Engineering, UTokyo
April 2009 Professor, School of Engineering, UTokyo
July 2009 Professor, RCAST, UTokyo
April 2023 Professor, School of Engineering, UTokyo

Research Interests

The objective of our research is to elucidate the emergen behavior of complex systems in terms of mathematical physics, as well as considering real applications of the emergent systems. We are especially interested in the interdisciplinary study of collective dynamics of self-driven particles and its jamming phenomena, which we call jamology, including vehicles, pedestrians, ants, packets in logistics and internet, proteins in organisms. The jamming phenomena in this study is considered as a kind of dynamical phase transition from free to congested state due to instability of flow. Our research is based on mathematical and physical analysis, followed by computer simulations and experiments in order to create better models that show emergent properties. The research subjects include reduction of traffic jam on highway, smooth evacuation of pedestrians, social animals and their emergent behaviors, supply chain network and granular flow.


Mathematical physics, Jamology


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