29 citations
- Aichi University of EducationJP1 paper
- Hokkaido UniversityJP1 paper
- Kobe UniversityJP1 paper
- Kumamoto UniversityJP1 paper
- Kyoto UniversityJP1 paper
- National Institute of Technology, Kagoshima CollegeJP1 paper
- National Institute of Technology, Oita CollegeJP1 paper
- University of BolognaIT1 paper
- University of CagliariIT1 paper
- University of TsukubaJP1 paper
8 papers
A relativistic two-stream instability in an extremely low-density plasma
Shinji Koide, Masaaki Takahashi, Rohta Takahashi
A linear analysis based on two-fluid equations in the approximation of a cold plasma, wherein the plasma temperature is assumed to be zero, demonstrates that a two-stream instabili…
3D Photon Conserving Code for Time-dependent General Relativistic Radiative Transfer : CARTOON
Mikiya M. Takahashi, Ken Ohsuga, Rohta Takahashi +3
We develop the 3-dimensional general relativistic radiative transfer code: CARTOON (Calculation code of Authentic Radiative Transfer based On phOton Number conservation in curved s…
Correspondence of topological classification between quantum graph extra dimension and topological matter
Tomonori Inoue, Makoto Sakamoto, Masatoshi Sato +1
In this paper, we study five-dimensional Dirac fermions of which extra-dimension is compactified on quantum graphs. We find that there is a non-trivial correspondence between matri…
Relativistic Rational Extended Thermodynamics of Polyatomic Gases with a New Hierarchy of Moments
Takashi Arima, Maria Cristina Carrisi, Sebastiano Pennisi +1
A relativistic version of the rational extended thermodynamics of polyatomic gases based on a new hierarchy of moments that takes into account the total energy composed by the rest…
Peculiarity of Symmetric Ring Systems with Double Y-Junctions and the magnetic effects
Yukihiro Fujimoto, Kohkichi Konno, Tomoaki Nagasawa
We discuss quantum dynamics in the ring systems with double Y-junctions in which two arms have same length. The node of a Y-junction can be parametrized by U(3). Considering mathem…
Resonant Transmission in One-Dimensional Quantum Mechanics with Two Independent Point Interactions: Full Parameter Analysis
Kohkichi Konno, Tomoaki Nagasawa, Rohta Takahashi
We discuss the scattering of a quantum particle by two independent successive point interactions in one dimension. The parameter space for two point interactions is given by $U(2)\…