Zobrazeno 1 - 10
of 28 400
pro vyhledávání: '"Yamagata AS"'
Autor:
Yamagata, Koichi
Publikováno v:
Physica Scripta 99(12) 125266, 2024
In the estimation for a parametric family of quantum state on a Hilbert space $\mathcal{H}$, the Gill and Massar bound is known as a lower bound of weighted traces of covariances of unbiased estimators. The Gill and Massar bound is derived by conside
Externí odkaz:
http://arxiv.org/abs/2411.14955
Autor:
Achenbach, P., Aoki, K., Aoki, S., Curceanu, C., Diehl, S., Doi, T., Endo, M., Fujita, M., Fukuda, T., Garcia-Tecocoatzi, H., Geng, L. S., Gunji, T., Hanhart, C., Harada, M., Harada, T., Hayakawa, S., He, B. R., Hiyama, E., Honda, R., Ichikawa, Y., Isaka, M., Jido, D., Jinno, A., Kamada, K., Kamiya, Y., Kong, Y. K., Liu, Z. W., Lu, J. X., Miwa, K., Mizutani, K., Murakami, K., Muto, R., Murase, K., Nagao, S., Nanamura, T., Nanjo, H., Nara, Y., Ohnishi, A., Qiu, J. W., Sakaguchi, A., Sakuma, F., Santopinto, E., Scordo, A., Sekihara, T., Seong, C., Shevchenko, N. V., Stone, J. R., Strakovsky, I., Suzuki, K., Takahashi, H., Takizawa, M., Tamura, H., Tomida, N., Umeya, A., Doce, O. Vázquez, Yamagata-Sekihara, J., Yamamoto, T. O., Xiao, Y., Yin, Z., Yu, Z., Zou, B. S.
The mini proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024) [https://kds.kek.jp/event/46965]" held at J-PARC, February 19-21, 2024, are presented. The workshop was devo
Externí odkaz:
http://arxiv.org/abs/2409.00366
Autor:
Yoshimura, Kenta, Yasunaga, Shunsuke, Jido, Daisuke, Yamagata-Sekihara, Junko, Hirenzaki, Satoru
This work studies $\bar{p}$-Ca atom spectra in light of the strong shifts and level widths, using the optical model with several types of parametric coefficients. The spectroscopic quantities are obtained as the eigenvalues of the Dirac equation, whe
Externí odkaz:
http://arxiv.org/abs/2408.14760
Autor:
Yamagata-Sekihara, J., Iizawa, Y., Jido, D., Ikeno, N., Hashimoto, T., Okada, S., Hirenzaki, S.
We theoretically investigate kaonic atom states based on the latest high precision data of the $2p$ states of the kaonic atoms in $^3$He and $^4$He (J-PARC E62). We consider the phenomenological form for the optical potential proportional to the nucl
Externí odkaz:
http://arxiv.org/abs/2407.20012
Autor:
Ikeno, Natsumi, Higashi, Yuko, Fujioka, Hiroyuki, Itahashi, Kenta, Sekiya, Ryohei, Tanaka, Yoshiki K., Yamagata-Sekihara, Junko, Metag, Volker, Nanova, Mariana, Hirenzaki, Satoru
We study theoretically the feasibility of the semi-exclusive $^{12}$C($p,dp$)$X$ reaction for the observation of $\eta^\prime$ mesic nuclei using the transport model JAM. The semi-exclusive measurements of the ($p,d$) reaction with protons from $\eta
Externí odkaz:
http://arxiv.org/abs/2406.06058
Autor:
Guo, Zijie, Lyu, Pumeng, Ling, Fenghua, Bai, Lei, Luo, Jing-Jia, Boers, Niklas, Yamagata, Toshio, Izumo, Takeshi, Cravatte, Sophie, Capotondi, Antonietta, Ouyang, Wanli
Accurate ocean dynamics modeling is crucial for enhancing understanding of ocean circulation, predicting climate variability, and tackling challenges posed by climate change. Despite improvements in traditional numerical models, predicting global oce
Externí odkaz:
http://arxiv.org/abs/2405.15412
Autor:
Fujiie, Takuhiro, Abe, Ryota, Hino, Masahiro, Hishida, Mayu, Hosobata, Takuya, Kitaguchi, Masaaki, Nakabe, Rintaro, Oikawa, Kenichi, Okudaira, Takuya, Parker, Joseph D., Sakai, Kenji, Shimizu, Hirohiko M., Tsuchikawa, Yusuke, Yamagata, Yutaka
Specular reflection of neutrons on material surfaces has been demonstrated in the energy range of 0.09-0.7 eV. The results suggest that the applicable energy range of reflective neutron optics can be extended to the near-epithermal region by using ex
Externí odkaz:
http://arxiv.org/abs/2403.18313
Autor:
Yamagata, Taku, Santos-Rodriguez, Raul
Reinforcement Learning (RL) has shown remarkable success in solving relatively complex tasks, yet the deployment of RL systems in real-world scenarios poses significant challenges related to safety and robustness. This paper aims to identify and furt
Externí odkaz:
http://arxiv.org/abs/2403.18539
Autor:
Kushibiki, Kosuke, Ozaki, Shinobu, Takeda, Masahiro, Hosobata, Takuya, Yamagata, Yutaka, Morita, Shinya, Tsuzuki, Toshihiro, Nakagawa, Keiichi, Saiki, Takao, Ohtake, Yutaka, Mitsui, Kenji, Okita, Hirofumi, Kitagawa, Yutaro, Kono, Yukihiro, Motohara, Kentaro, Takahashi, Hidenori, Konishi, Masahiro, Kato, Natsuko, Koyama, Shuhei, Chen, Nuo
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 10, Issue 1, 015004 (March 2024)
Integral Field Spectroscopy (IFS) is an observational method to obtain spatially resolved spectra over a specific field of view (FoV) in a single exposure. In recent years, near-infrared IFS has gained importance in observing objects with strong dust
Externí odkaz:
http://arxiv.org/abs/2403.01668
Autor:
Yamagata, So
Discrete homotopy theory or A-homotopy theory is a combinatorial homotopy theory defined on graphs, simplicial complexes and metric spaces, reflecting information about their connectivity. The purpose of the present paper is to further understanding
Externí odkaz:
http://arxiv.org/abs/2402.15714