Zobrazeno 1 - 10
of 281
pro vyhledávání: '"Maruyama, Tomoyuki"'
Publikováno v:
Phys.Rev.C 108 (2023) 2, 024910
We present a Poincar\'e covariant cascade algorithm based on the constrained Hamiltonian dynamics in an $8N$-dimensional phase space to simulate the Boltzmann-type two-body collision term. We compare this covariant cascade algorithm with traditional
Externí odkaz:
http://arxiv.org/abs/2306.12131
Autor:
Hwang, Eunseok, Jang, Dukjae, Park, Kiwan, Kusakabe, Motohiko, Kajino, Toshitaka, Balantekin, A. Baha, Maruyama, Tomoyuki, Kwon, Youngshin, Kwak, Kyujin, Cheoun, Myung-Ki
We explore the effects of electromagnetic (EM) fluctuations in plasmas on solar neutrino fluxes exploiting the fluctuation-dissipation theorem. We find that the EM spectrum in the solar core is enhanced by the EM fluctuations due to the high density
Externí odkaz:
http://arxiv.org/abs/2211.00907
Autor:
Maruyama, Tomoyuki, Balantekind, A. Baha, Cheoung, Myung-Ki, Kajino, Toshitaka, Kusakabef, Motohiko, Mathewsh, Grant J.
We study neutrino and antineutrino emission from the direct Urca process in neutron-star matter in the presence of strong magnetic fields. We calculate the neutrino emissivity of the direct Urca process, whereby a neutron converts to a proton, an ele
Externí odkaz:
http://arxiv.org/abs/2103.01703
Autor:
Hwang, Eunseok, Jang, Dukjae, Park, Kiwan, Kusakabe, Motohiko, Kajino, Toshitaka, Balantekin, A. Baha, Maruyama, Tomoyuki, Ryu, Chang-Mo, Cheoun, Myung-Ki
Publikováno v:
Eunseok Hwang et al JCAP11(2021)017
A moving ion in plasma creates a deformed electric potential depending on the ion velocity, which leads to the distinct screening effect compared to the standard static Salpeter formula. In this paper, adopting the test charge method, we explore the
Externí odkaz:
http://arxiv.org/abs/2102.09801
Autor:
Yoshida, Akari, Nishibata, Masayuki, Maruyama, Tomoyuki, Sunami, Shogo, Isono, Kyoichi, Kawamata, Tomoyuki
Publikováno v:
In Neuroscience 6 February 2024 538:80-92
Publikováno v:
Phys. Rev. C 102, 024913 (2020)
Relativistic quantum molecular dynamics based on the relativistic mean field theory (RQMD.RMF) is extended by including momentum-dependent potential. The equation of state (EoS) dependence of the directed and the elliptic flow of protons in the beam
Externí odkaz:
http://arxiv.org/abs/2004.05550
Autor:
Onishi, Naoki, Maruyama, Tomoyuki
A simple model of chiral asymmetry is proposed to interpret the origin of the strong toroidal magnetic field. The electrons relevant to dynamics forming the the field are in a quantume degenerate state with ultra-relativistic Fermi energy. The system
Externí odkaz:
http://arxiv.org/abs/2002.02602
Akademický článek
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We explore photon vortex generation in synchrotron radiations from a spiral moving electron under a uniform magnetic field along z-axis using Landau quantization. The obtained wave-function of the photon vortecies is the eigen-state of the z-componen
Externí odkaz:
http://arxiv.org/abs/1908.11545
Autor:
Miyatsu, Tsuyoshi, Cheoun, Myung-Ki, Ishizuka, Chikako, Kim, K. S., Maruyama, Tomoyuki, Saito, Koichi
Using relativistic Hartree-Fock (RHF) approximation, we study the effect of Fock terms on the nuclear properties not only around the saturation density, $\rho_{0}$, but also at higher densities. In particular, we investigate how the momentum dependen
Externí odkaz:
http://arxiv.org/abs/1902.05769