Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Aoyama, Tatsumi"'
Autor:
Aoyama, Tatsumi, Doi, Takahiro M., Doi, Takumi, Itou, Etsuko, Lyu, Yan, Murakami, Kotaro, Sugiura, Takuya
We report scale setting and hadronic properties for our new lattice QCD gauge configuration set (HAL-conf-2023). We employ $(2+1)$-flavor nonperturbatively improved Wilson fermions with stout smearing and the Iwasaki gauge action on a $96^4$ lattice,
Externí odkaz:
http://arxiv.org/abs/2406.16665
Simulation of the intermediate levels of disorder found in multi-component multi-sublattice systems in various functional materials is a challenging issue, even for state-of-the-art methodologies based on first-principles calculation. Here, we introd
Externí odkaz:
http://arxiv.org/abs/2309.04769
Autor:
Aoyama, Tatsumi, Yoshimi, Kazuyoshi, Ido, Kota, Motoyama, Yuichi, Kawamura, Taiki, Misawa, Takahiro, Kato, Takeo, Kobayashi, Akito
Publikováno v:
Computer Physics Communications, Vol. 298, 109087 (2024)
H-wave is an open-source software package for performing the Hartree--Fock approximation (HFA) and random phase approximation (RPA) for a wide range of Hamiltonians of interacting fermionic systems. In HFA calculations, H-wave examines the stability
Externí odkaz:
http://arxiv.org/abs/2308.00324
Publikováno v:
PoS LATTICE2022 (2023) 284
Bridge++ is a general-purpose code set for lattice QCD simulations aiming at a readable, extensible, and portable code while keeping practical high performance. The new version 2.0 employs machine-dependent optimization, enabling flexible data layout
Externí odkaz:
http://arxiv.org/abs/2303.05883
The nuclear forces are determined by combining the HAL QCD method and a new type of source smearing technique. The new smearing is a projection to a space spanned by the lowest-lying eigenvectors of the free Laplacian operator on a lattice, which ena
Externí odkaz:
http://arxiv.org/abs/2202.12532
Autor:
Akahoshi, Yutaro, Aoki, Sinya, Aoyama, Tatsumi, Kanamori, Issaku, Kanaya, Kazuyuki, Matsufuru, Hideo, Namekawa, Yusuke, Nemura, Hidekatsu, Taniguchi, Yusuke
Bridge++ is a general-purpose code set for a numerical simulation of lattice QCD aiming at a readable, extensible, and portable code while keeping practically high performance. The previous version of Bridge++ is implemented in double precision with
Externí odkaz:
http://arxiv.org/abs/2111.04457
Autor:
Aoyama, Tatsumi, Yoshimi, Kazuyoshi, Ido, Kota, Motoyama, Yuichi, Kawamura, Taiki, Misawa, Takahiro, Kato, Takeo, Kobayashi, Akito
Publikováno v:
In Computer Physics Communications May 2024 298
Publikováno v:
Prog Theor Exp Phys (2020)
In this paper, we investigate the HAL QCD potential in the $I=1$ $\pi \pi$ scattering using the hybrid method for all-to-all propagators, in which a propagator is approximated by low-eigenmodes and the remaining high-eigenmode part is stochastically
Externí odkaz:
http://arxiv.org/abs/2004.01356
In this paper, we report recent developments of the HAL QCD method for two hadron systems which contain quark annihilation processes using all-to-all quark propagators. We employ the hybrid method for all-to-all propagators, which combines a low-mode
Externí odkaz:
http://arxiv.org/abs/1911.12539
Autor:
Miyamoto, Takaya, Akahoshi, Yutaro, Aoki, Sinya, Aoyama, Tatsumi, Doi, Takumi, Gongyo, Shinya, Sasaki, Kenji
Publikováno v:
Phys. Rev. D 101, 074514 (2020)
The approximated partial wave decomposition method to the discrete data on a cubic lattice, developed by C. W. Misner, is applied to the calculation of $S$-wave hadron-hadron scatterings by the HAL QCD method in lattice QCD. We consider the Nambu-Bet
Externí odkaz:
http://arxiv.org/abs/1906.01987