Zobrazeno 1 - 10
of 23 766
pro vyhledávání: '"A. Ohira"'
Complex systems, such as biological networks, frequently display intricate rhythmic behaviors emerging from simple, small-amplitude dynamics in individual components. This study investigates how significant oscillatory signals can arise from a minima
Externí odkaz:
http://arxiv.org/abs/2411.01965
Autor:
Ohira, Kenta
We derive an exact solution for a simple non-autonomous delay differential equation (DDE) over the entire real-time axis, representing it as a sum of Gaussian-shaped dynamics with distinct peak positions. This marks the first explicit solution for no
Externí odkaz:
http://arxiv.org/abs/2411.11402
Autor:
Ohira, Yutaka
We solve the cosmic-ray diffusion around a Galactic black hole binary (microquasars) by considering the finite size of the escape region and the continuous cosmic-ray injection. We find that the energy spectrum of escaping cosmic rays in the gamma-ra
Externí odkaz:
http://arxiv.org/abs/2410.22976
Autor:
Kawamata, Masahiro, Pang, Xiaoqi, Murakawa, Hiroshi, Ohira-Kawamura, Seiko, Nakajima, Kenji, Masuda, Hidetoshi, Fujita, Masaki, Hanasaki, Noriaki, Onose, Yoshinori, Nambu, Yusuke
Magnetic excitations in the noncentrosymmetric magnet Sr$_2$MnSi$_2$O$_7$ were investigated through inelastic neutron scattering measurements. Major magnetic excitations are limited up to the energy transfer of 0.5 meV, and two magnon branches under
Externí odkaz:
http://arxiv.org/abs/2410.22741
Autor:
Ohira, Toru
The separability of quantum systems, particularly in mixed states, remains a fundamental challenge in quantum mechanics. The Werner density matrix, a widely studied representation of bipartite mixed quantum systems, has provided valuable insights int
Externí odkaz:
http://arxiv.org/abs/2409.18495
Autor:
Gao, Bin, Chen, Tong, Liu, Chunxiao, Klemm, Mason L., Zhang, Shu, Ma, Zhen, Xu, Xianghan, Won, Choongjae, McCandless, Gregory T., Murai, Naoki, Ohira-Kawamura, Seiko, Moxim, Stephen J., Ryan, Jason T., Huang, Xiaozhou, Wang, Xiaoping, Chan, Julia Y., Cheong, Sang-Wook, Tchernyshyov, Oleg, Balents, Leon, Dai, Pengcheng
In magnetically ordered insulators, elementary quasiparticles manifest as spin waves - collective motions of localized magnetic moments propagating through the lattice - observed via inelastic neutron scattering. In effective spin-1/2 systems where g
Externí odkaz:
http://arxiv.org/abs/2408.15957
Autor:
Sakawa, Y., Ishihara, H., Ryazantsev, S. N., Alkhimova, M. A., Kumar, R., Kuramoto, O., Matsumoto, Y., Ota, M., Egashira, S., Nakagawa, Y., Minami, T., Sakai, K., Taguchi, T., Habara, H., Kuramitsu, Y., Morace, A., Abe, Y., Arikawa, Y., Fujioka, S., Kanasaki, M., Asai, T., Morita, T., Fukuda, Y., Pikuz, S., Pikuz, T., Ohira, Y., Doehl, L. N. K., Woolsey, N., Sano, T.
An experimental investigation of collisionless shock ion acceleration is presented using a multicomponent plasma and a high-intensity picosecond duration laser pulse. Protons are the only accelerated ions when a near-critical-density plasma is driven
Externí odkaz:
http://arxiv.org/abs/2408.13088
Autor:
Nishihara, Shin, Ohira, Toru
Among living organisms, there are species that change their patterns on their body surface during their growth process and those that maintain their patterns. Theoretically, it has been shown that large-scale species do not form distinct patterns. Ho
Externí odkaz:
http://arxiv.org/abs/2407.17217
Autor:
Ohira, Kenta, Ohira, Toru
In this study, we introduce and explore a delay differential equation that lends itself to explicit solutions in the Fourier-transformed space. Through the careful alignment of the initial function, we can construct a highly accurate solution to the
Externí odkaz:
http://arxiv.org/abs/2401.02027
Autor:
Kazuki, Kamiido, Yutaka, Ohira
In this work, we investigate collisionless shocks propagating in a relativistically hot unmagnetized electron-positron plasmas. We estimate the dissipation fraction at shocks in the relativistically hot plasma, showing that it is sufficiently large t
Externí odkaz:
http://arxiv.org/abs/2406.07244