396 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP38 papers
- The University of TokyoJP29 papers
- Nagoya UniversityJP26 papers
- Kyushu UniversityJP24 papers
- The University of OsakaJP24 papers
- Tokai UniversityJP24 papers
- Boston UniversityUS23 papers
- California State University, Dominguez HillsUS23 papers
- Chonnam National UniversityKR23 papers
- Duke UniversityUS23 papers
- Gifu UniversityJP23 papers
- Institute for Cosmic Ray ResearchJP23 papers
12 papers · 1 filter
The path optimization for the sign problem of low dimensional QCD
Yuto Mori, Kouji Kashiwa, Akira Ohnishi
The path optimization has been proposed to weaken the sign problem which appears in some field theories such as finite density QCD. In this method, we optimize the integration path…
Evading the model sign problem in the PNJL model with repulsive vector-type interaction via path optimization
Akira Ohnishi, Yuto Mori, Kouji Kashiwa
We discuss the sign problem in the Polyakov loop extended Nambu--Jona-Lasinio model with repulsive vector-type interaction by using the path optimization method. In this model, bot…
Meromorphy of local zeta functions in smooth model cases
Joe Kamimoto, Toshihiro Nose
It is known that local zeta functions associated with real analytic functions can be analytically continued as meromorphic functions to the whole complex plane. But, in the case of…
Superconductivity in Nb5Ir3-xPtxO
Jiro Kitagawa, Shusuke Hamamoto
We have investigated the superconducting critical temperature Tc of solid solution Nb5Ir3-xPtxO with the Ti5Ga4-type structure. The both end-members of Nb5Ir3O and Nb5Pt3O are repo…
Stability conditions of an ODE arising in human motion and its numerical simulation
Takahiro Kosugi, Hitoshi Kino, Masaaki Goto +1
This paper discusses the stability of an equilibrium point of an ordinary differential equation (ODE) arising from a feed-forward position control for a musculoskeletal system. The…
Path optimization in 0+1 dimensional QCD at finite density
Yuto Mori, Kouji Kashiwa, Akira Ohnishi
We investigate the sign problem in 0+1 dimensional QCD at finite chemical potential by using the path optimization method. The SU(3) link variable is complexified to the SL(3,$\mat…
New high-entropy alloy superconductor HfNbTiVZr
Naoki Ishizu, Jiro Kitagawa
High-entropy alloys are a new class of alloys, and attract much attention due to their unique properties. Since the discovery of a superconducting high-entropy alloy (HEA) in 2014,…
Color Superconductivity in Holographic SYM Theory
Kazuo Ghoroku, Kouji Kashiwa, Yoshimasa Nakano +2
A holographic bottom-up model used in studying the superconducting system is applied to search for the color superconducting phase of supersymmetric Yang-Mills theory. We apply the…
A ring of symmetric Hermitian modular forms of degree with integral Fourier coefficients
Toshiyuki Kikuta
We determine the structure over of the ring of symmetric Hermitian modular forms with respect to of degree (with a character), whose Fourie…
Roberge-Weiss periodicity, canonical sector and modified Polyakov-loop
Kouji Kashiwa, Hiroaki Kouno
To obtain deeper understanding of QCD properties at finite temperature, we consider the Fourier decomposition of the grand-canonical partition function based on the canonical ensem…
Application of the path optimization method to the sign problem in an effective model of QCD with a repulsive vector-type interaction
Kouji Kashiwa, Yuto Mori, Akira Ohnishi
The path optimization method is applied to a QCD effective model with the Polyakov loop and the repulsive vector-type interaction at finite temperature and density to circumvent th…
Atmospheric Neutrino Oscillation Analysis With Improved Event Reconstruction in Super-Kamiokande IV
Kamiokande Collaboration, M. Jiang, K. Abe +167
A new event reconstruction algorithm based on a maximum likelihood method has been developed for Super-Kamiokande. Its improved kinematic and particle identification capabilities e…