40 citations
- Hokkaido Pharmaceutical UniversityJP2 papers
- Hokkaido UniversityJP2 papers
- Hokkaido University of EducationJP2 papers
- Hokkaido University of ScienceJP2 papers
- Autorité de sûreté nucléaire et de radioprotectionFR1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Czech Academy of Sciences, Nuclear Physics InstituteCZ1 paper
- East Carolina UniversityUS1 paper
- Fukuoka UniversityJP1 paper
- Institut CurieFR1 paper
- Institut de Radioprotection et de Sûreté NucléaireFR1 paper
- Institute of Nuclear Physics, Polish Academy of SciencesPL1 paper
11 papers
Monte Carlo study on critical exponents of the classical Heisenberg model in ferromagnetic icosahedral quasicrystal
Shinji Watanabe, Tsunetomo Yamada, Hiroyuki Takakura +1
Quasicrystals (QCs) lack three-dimensional periodicity of atomic arrangement but possess long-range structural order, which are distinct from periodic crystals and random systems.…
Exact vacuum solution with Hopf structure in general relativity
Junpei Harada
An exact solution to the vacuum Einstein equations is presented, whose structure is based on the Hopf fibration. The solution employs a geodesic null vector field that defines a tw…
Evaluation of the uncertainty in calculating nanodosimetric quantities due to the use of different interaction cross sections in Monte Carlo track structure codes
Carmen Villagrasa, Giorgio Baiocco, Zine-El-Abidine Chaoui +11
This study evaluates the uncertainty in nanodosimetric calculations caused by variations in interaction cross sections within Monte Carlo Track Structure (MCTS) simulation codes. N…
Gauge-invariant formulation for the gravitational wave equations
Junpei Harada
A gauge-invariant formulation for the gravitational wave equations is presented. Using this approach, weak, plane wave solutions in a vacuum are derived in various theories. These…
Gravity at cosmological distances: Explaining the accelerating expansion without dark energy
Junpei Harada
Three theoretical criteria for gravitational theories beyond general relativity are considered: obtaining the cosmological constant as an integration constant, deriving the energy…
Dark energy in conformal Killing gravity
Junpei Harada
The Friedmann equation, augmented with an additional term that effectively takes on the role of dark energy, is demonstrated to be an exact solution to the recently proposed gravit…