YOSHIDA, Zensho

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Title
Project Professor
Field
Mathematical Physics, Nonlinear Science, Plasma Physics
Research interests
Self-organization, Infinite-dimensional Hamiltonian system
Current research

Physics and mathematics of macro systems, especially the self-organization mechanisms. Focusing on Casimir invariants that foliate the phase space of infinite-dimensional, non-canonical Hamiltonian systems, dynamics on leaves and the diversity of peculiar structures (such as chirality) are being elucidated.
Selected publications
  1. Z. Yoshida and Y. Giga; Remarks on spectra of operator rot, Math. Z. 204 (1990), 235-245.
  2. S. M. Mahajan and Z. Yoshida; Double curl Beltrami flow -- diamagnetic structures, Phys. Rev. Lett. 81 (1998), 4863-4866.
  3. Z. Yoshida and S.M. Mahajan; Variational principles and self-organization in two-fluid plasmas, Phys. Rev. Lett. 88 (2002), 095001 (pp. 4).
  4. Z. Yoshida; Clebsch parameterization: basic properties and remarks on its applications, J. Math. Phys. 50 (2009), 113101 (pp. 16).
  5. Z. Yoshida, H. Saitoh, J. Morikawa, Y. Yano, S. Watanabe and Y. Ogawa; Magnetospheric vortex formation: self-organized confinement of charged particles, Phys. Rev. Lett. 104 (2010), 235004 (4pp).
  6. Z. Yoshida; Self-organization by topological constraints: hierarchy of foliated phase space, Adv. Phys. X 1 (2016), 2-19.
  7. Z. Yoshida and P. J. Morrison; Epi-two-dimensional fluid flow: A new topological paradigm for dimensionality, Phys. Rev. Lett. 119 (2017), 244501 (pp. 5).
  8. Z. Yoshida and P. J. Morrison; Deformation of Lie-Poisson algebras and chirality, J. Math. Phys. 61 (2020), 082901 (pp. 22).
  9. Z. Yoshida; Nambu mechanics viewed as a Clebsch parameterized Poisson algebra -- toward canonicalization and quantization, Prog. Theor. Exp. Physics 2024 (2024), 03A103 (24pp).
  10. H. Saitoh, M. Nishiura, N. Kenmochi and Z. Yoshida; Experimental study on chorus emission in an artificial magnetosphere, Nature Comm. 15 (2024), 861 (11pp).

Memberships, activities and

Awards

The Physical Society of Japan, The Japan Society of Plasma Science and Nuclear Fusion Research

Moonshot Goal 10 Program Director (2024～)

Cabinet Office Expert Meeting "Fusion Energy", member (2022～)

Science Council of Japan, Associate Member (2017～)

Association of Asia Pacific Physical Sciences, Division of Plasma Physics, Vice Chairman (2019～)

JSPF Award (1993) "Anomalous ion heating associated with MHD relaxation process"