Biography of Dr. M.Tanaka

>> Japanese: 著者の略歴

....Dr. Motohiko Tanaka studied in the faculty of science of
high-temperature space plasmas and was awarded in the Ph.D.
degree of the University of Tokyo in 1981. He is interested in
nature and arts, mainly paintings and classical music of
J. S. Bach and W.A. Mozart.

....Immediately following his studies, he moved to USA and was
engaged in the post-doctral research at the University of Maryland.
He became a member of the Institute for Physical Science and
Technology, and the heads of space physics were Prof. C. S. Wu
and also Prof. K. Papadopolous.

....After returning to Japan, he developed the "macro-particle"
implicit simulation code to study the mesoscale kinetic phenomena
of space plasmas. By using it, he could prove the origins of magnetic
reconnection, which are explosive plasmas, by the non-MHD process
of inertia. Both electrons and ions move with separate freedom into
and outside the reconnection X point, then stream back to one plasma
again. A complete story of magnetic reconnection was published in
Phys.Plasmas, of 1995 and 1996.

....Beginning in 1996 he had the occasion of a year's stay at MIT
(the Massachusetts Institute of Technology, USA). At this time
his research field shifted to strongly Coulomb-coupled systems.
Recently, he added the research of solid-state physics of
microwave-material interactions, and energetic beam generation
by laser irradiation through Coulomb explosion.

....He found in his research that "ice" in frozen state below 273 K
is not heated by microwaves due to crystal state (microwave
oven, in Giga Hertz), which was publised in J.Chem.Physics
in 2007.

....His research includes microwave-materials interactions, Coulomb
explosion of hydrogen pellets irradiated by a short-pulse laser,
ionic condensed matters (charged polymers, molecular and
biological systems) and nanosize matters (solid, liquid), using both
classical and quantum mechanical (ab initio) molecular dynamics
simulations. His recent works also include the peculiar "charge
inversion" (strong double layers on particles), DNA translocation
through a nanopore, and the ab initio molecular dynamics study
of nano-sized matters. To achieve efficient computational research,
he is making R&D and maintaining high-speed cluster machines.

....He was one of five research leaders and the secretary of the MEXT
project under Prime Area Research of microwave fundamentals and
applications in 2006-2011. He was awarded by the first Rustom Ray
Innovator Award of Global Congress on Microwave Energy and
Application in the year of 2008 (https://physique.isc.chubu.ac.jp/).

....He finished a long work on nanotube accelerators of intense
laser irradiation at Comput. Physics Comm. Vol.241, pp.56-63, 2019
(Science Direct); and https://arxiv.org/physics/arxiv1711.04106.pdf.
He is focusing on microwave physics of methane hydrate, and
the first-principle molecular dynamics simulations

....After forty years of physics research, he has decided to make
his simulation codes available at https://github.com/Mtanaka77/.
Please visit these pages and experience explicit and implicit simulation
codes. The three titles of simulations include the followings:
1. Relativistic and electromagnetic molecular dynamics simulation aｓ
　nanoscale phenomena,
2. Large-scale electromagnetic particle-in-cell simulation as
　collisionless magnetic reconnection,
3. Water and hydrate molecular dynamics by the TIP5P code.

Note: To better handling of the code of TIP5P, one should wait for
5 periods of time for dryrun and continue the run; self diffusion of
particles is so much as 50-60 per cent of the electric field (March, 2026).

A vector-and-parallel supercomputer is:
4. SIESTA-4.1b on vector and paralell clusters.

Compare Linux operating systems, and charge inversion phenomena
are added below:
5. AlmaLinux v.s. Debian OS's,
6. Charge inversion and nanoscale phenomena of living cells.

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