Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Matsufuru Hideo"'
We study the implementation of the even-odd Wilson fermion matrix for lattice QCD simulations on the A64FX architecture. Efficient coding of the stencil operation is investigated for two-dimensional packing to SIMD vectors. We measure the sustained p
Externí odkaz:
http://arxiv.org/abs/2303.08609
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
Autor:
Yokota, Takeru, Ito, Yuta, Matsufuru, Hideo, Namekawa, Yusuke, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro
We investigate color superconductivity on the lattice using the gap equation for the Cooper pair condensate. The weak coupling analysis is justified by choosing the physical size of the lattice to be smaller than the QCD scale, while keeping the aspe
Externí odkaz:
http://arxiv.org/abs/2302.11273
Publikováno v:
EPJ Web of Conferences, Vol 175, p 12009 (2018)
In order to better understand the role played by instantons behind nonperturbative dynamics, we investigate the instanton contributions to the gluonic two point correlation functions in the SU(2) YM theory. Pseudoscalar-scalar gluonic correlation fun
Externí odkaz:
https://doaj.org/article/c44de2ae1f7d4bce8c404f2a9d7fd243
Autor:
Kanamori Issaku, Matsufuru Hideo
Publikováno v:
EPJ Web of Conferences, Vol 175, p 09002 (2018)
We report the performance of Wilson and Domainwall Kernels on a new Intel Xeon Phi Knights Landing based machine named Oakforest-PACS, which is co-hosted by University of Tokyo and Tsukuba University and is currently fastest in Japan. This machine us
Externí odkaz:
https://doaj.org/article/e478171e63b743a6b3580da54d8826ce
Autor:
Akaho, Ryuichiro, Harada, Akira, Nagakura, Hiroki, Iwakami, Wakana, Okawa, Hirotada, Furusawa, Shun, Matsufuru, Hideo, Sumiyoshi, Kohsuke, Yamada, Shoichi
Publikováno v:
The Astrophysical Journal, 944:60 (18pp), 2023 February 10
We investigate the protoneutron star (PNS) convection using our newly developed general relativistic Boltzmann neutrino radiation-hydrodynamics code. This is a pilot study for more comprehensive investigations later. As such, we take a snapshot of a
Externí odkaz:
http://arxiv.org/abs/2206.01673
We report an implementation of a multigrid solver for the Clover fermion on supercomputer Fugaku, which uses A64FX CPU with Arm architecture. On Fugaku, a highly optimized implementation of BiCGStab solver with domain decomposed preconditioner for th
Externí odkaz:
http://arxiv.org/abs/2112.00501
Autor:
Namekawa, Yusuke, Asano, Yuhma, Ito, Yuta, Kaneko, Takashi, Matsufuru, Hideo, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro, Yokota, Takeru
We discuss the flavor number dependence of QCD at low temperature and high density by the complex Langevin method. In our previous work, the complex Langevin method is confirmed to satisfy the criterion for correct convergence in certain regions, suc
Externí odkaz:
http://arxiv.org/abs/2112.00150
Autor:
Yokota, Takeru, Asano, Yuhma, Ito, Yuta, Matsufuru, Hideo, Namekawa, Yusuke, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro
We develop a new method to investigate color superconductivity (CSC) on the lattice based on the Thouless criterion, which amounts to solving the linearized gap equation without imposing any ansatz on the structure of the Cooper pairs. We perform exp
Externí odkaz:
http://arxiv.org/abs/2111.14578
Autor:
Tsutsui, Shoichiro, Asano, Yuhma, Ito, Yuta, Matsufuru, Hideo, Namekawa, Yusuke, Nishimura, Jun, Tsuchiya, Asato, Yokota, Takeru
It is expected that the color superconductivity (CSC) phase appears in QCD at low temperature and high density. On the basis of the lattice perturbation theory, a possible parameter region in which the CSC occurs has been predicted. In this work, we
Externí odkaz:
http://arxiv.org/abs/2111.15095