55 citations · 154 across the 11 of their papers we have counts for
12 papers
A Unified theory of transport barriers (TBs) in magnetically confined systems
Swadesh M. Mahajan, David R. Hatch, Zensho Yoshida +1
A thermodynamic model of a plasma boundary layer, characterized by enhanced temperature contrasts is proposed. The theory is constructed to determine the inner boundary temperature…
Diffusion with finite-helicity field tensor: a new mechanism of generating heterogeneity
Naoki Sato, Zensho Yoshida
Topological constraints on a dynamical system often manifest themselves as breaking of the Hamiltonian structure; well-known examples are non-holonomic constraints on Lagrangian me…
Inward Diffusion and Acceleration of Particles Driven by Turbulent Fluctuations in Magnetosphere
Y. Ushida, Y. Kawazura, N. Sato +1
Charged particles in a magnetosphere are spontaneously attracted to a planet while increasing their kinetic energy via inward diffusion process. A constraint on particles' micro-sc…
Measurement of Wave Electric Fields in Plasmas by Electro-Optic Probe
M. Nishiura, Z. Yoshida, T. Mushiake +10
Electric field measurement in plasmas permits quantitative comparison between the experiment and the simulation in this study. An electro-optic (EO) sensor based on Pockels effect…
Self-Organization and Heating by Inward Diffusion in Magnetospheric Plasmas
N. Sato, Z. Yoshida, Y. Kawazura
Through the process of inward diffusion, a strongly localized clump of plasma is created in a magnetosphere. The creation of the density gradient, instead of the usual flattening b…
Quantum spirals
Z. Yoshida, S. M. Mahajan
Quantum systems often exhibit fundamental incapability to entertain vortex. The Meissner effect, a complete expulsion of the magnetic field (the electromagnetic vorticity), for ins…
Hamiltonian Formalism of Extended Magnetohydrodynamics
Hamdi M. Abdelhamid, Yohei Kawazura, Zensho Yoshida
The extended magnetohydrodynamics (MHD) system, including the Hall effect and the electron inertia effect, has a Hamiltonian structure embodied by a noncanonical Poisson algebra on…
A Stochastic Model of Inward Diffusion in Magnetospheric Plasmas
Naoki Sato, Zensho Yoshida
The inward diffusion of particles, often observed in magnetospheric plasmas (either naturally created stellar ones or laboratory devices) creates a spontaneous density gradient, wh…
Relativistic helicity and link in Minkowski space-time
Z. Yoshida, Y. Kawazura, T. Yokoyama
A relativistic helicity has been formulated in the four-dimensional Minkowski space-time. Whereas the relativistic distortion of space-time violates the conservation of the convent…
Thermo-magneto coupling in a dipole plasma
Z. Yoshida, Y. Yano, J. Morikawa +1
On a dipole plasma, we observe the generation of magnetic moment, as the movement of the levitating magnet-plasma compound, in response to electron-cyclotron heating and the increa…
Kolmogorov Dissipation scales in Weakly Ionized Plasmas
V. Krishan, Z. Yoshida
In a weakly ionized plasma, the evolution of the magnetic field is described by a "generalized Ohm's law" that includes the Hall effect and the ambipolar diffusion terms. These ter…
Self-trapping of strong electromagnetic beams in relativistic plasmas
V. I. Berezhiani, S. M. Mahajan, Z. Yoshida +1
Interaction of an intense electromagnetic (EM) beam with hot relativistic plasma is investigated. It is shown that the thermal pressure brings about a fundamental change in the dyn…