Zobrazeno 1 - 10
of 22 264
pro vyhledávání: '"A. Ishizaki"'
Autor:
Katsuno, Shumpei, Yoshida, Masahiro, Inoue, Takuya, De Zoysa, Menaka, Hatsuda, Ranko, Ishizaki, Kenji, Noda, Susumu
We introduce multijunction active layers, featuring a stack of alternating active layers and tunnel junctions, to PCSELs to increase their slope efficiency, which is vital for various applications including laser processing and LiDAR. First, we desig
Externí odkaz:
http://arxiv.org/abs/2409.16880
Meteorites and their components exhibit a diverse range of oxygen isotope compositions, and the isotopic exchange timescale between dust grains and ambient gas is a key parameter for understanding the spatiotemporal evolution of the solar nebula. As
Externí odkaz:
http://arxiv.org/abs/2409.02736
Autor:
Tanaka, Shuta J., Ishizaki, Wataru
Pulsar wind nebulae (PWNe) are clouds of the magnetized relativistic electron/positron plasma supplied from the central pulsar. However, the number of radio-emitting particles inside a PWN is larger than the expectation from the study of pulsar magne
Externí odkaz:
http://arxiv.org/abs/2405.04110
Autor:
Ishizaki, Wataru, Ioka, Kunihito
We investigate parametric decay instability (PDI) of circularly polarized Alfv\'en wave into daughter acoustic wave and backward Alfv\'en wave in magnetically-dominated plasma, in which the magnetization parameter $\sigma$ (energy density ratio of ba
Externí odkaz:
http://arxiv.org/abs/2404.15689
Lattice softness has a significant impact on charge carrier dynamics in condensed matter systems, contributing to the emergence of various properties and functions. Examples include the remarkable carrier lifetimes and defect tolerances of hybrid org
Externí odkaz:
http://arxiv.org/abs/2404.02459
Autor:
Okuizumi, M., Auton, C. J., Endo, S., Fujioka, H., Hirota, K., Ino, T., Ishizaki, K., Kimura, A., Kitaguchi, M., Koga, J., Makise, S., Niinomi, Y., Oku, T., Okudaira, T., Sakai, K., Shima, T., Shimizu, H. M., Tada, H., Takada, S., Takahashi, S., Tani, Y., Yamamoto, T., Yoshikawa, H., Yoshioka, T.
The enhancement of the parity-violating asymmetry in the vicinity of $p$-wave compound nuclear resonances was observed for a variety of medium-heavy nuclei. The enhanced parity-violating asymmetry can be understood using the $s$-$p$ mixing model. The
Externí odkaz:
http://arxiv.org/abs/2402.18876
Autor:
Ishizaki, Kohei, Ide, Ikuo, Fujita, Masaki, Hotta, Hiroki, Ito, Yuki, Iinuma, Masataka, Ikeda, Yoichi, Iwata, Takahiro, Kitaguchi, Masaaki, Kohri, Hideki, Matsushita, Taku, Miura, Daisuke, Miyachi, Yoshiyuki, Shimizu, Hirohiko M., Yosoi, Masaru
Producing a polarized lanthanum (La) target with high polarization and long relaxation time is crucial for realizing time-reversal violation experiments using polarized neutron beams. We use a LaAlO3 crystal doped with a small amount of Nd3+ ions for
Externí odkaz:
http://arxiv.org/abs/2402.07378
Autor:
Funo, Ken, Ishizaki, Akihito
Publikováno v:
Phys. Rev. Lett. 132, 170402 (2024)
Quantum systems are unavoidably open to their surrounding degrees of freedom. The theory of open quantum systems is thus crucial to understanding the fluctuations, dissipation, and decoherence of a quantum system of interest. Typically, the bath is m
Externí odkaz:
http://arxiv.org/abs/2312.00376
Ultrafast optical spectroscopy is a powerful technique for studying the dynamic processes of molecular systems in condensed phases. However, in molecular systems containing many dye molecules, the spectra can become crowded and difficult to interpret
Externí odkaz:
http://arxiv.org/abs/2311.16408
In this paper, we study asset selection methods to construct a sparse index tracking portfolio. For its advantage over full replication portfolio, the concept of sparse index tracking portfolio has significant attention in the field of finance and in
Externí odkaz:
http://arxiv.org/abs/2311.14228