Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Kouno, Hiroaki"'
In the framework of modular transformations, we reformulate the recently proposed hadron-quark hybrid model when the imaginary baryonic chemical potential is introduced. As a result, we can consider the torus, which is characterized by the complex nu
Externí odkaz:
http://arxiv.org/abs/2410.11598
Autor:
Kashiwa, Kouji, Kouno, Hiroaki
We discuss the role of Roberge-Weiss periodicity in the thermodynamics of quantum chromodynamics at moderately high temperature, where the semi-quark-gluon plasma is expected. From the construction of the grand canonical partition function at zero an
Externí odkaz:
http://arxiv.org/abs/2405.08333
Roberge-Weiss periodicity and singularity in hadron resonance gas model with excluded volume effects
Quantum chromodynamics (QCD) with pure imaginary baryon number chemical potential mu =i theta T, where T is temperature and theta is a real number, has the Roberge-Weiss periodicity. We study the theta-dependence of the baryon number density and the
Externí odkaz:
http://arxiv.org/abs/2311.14306
Autor:
Kouno, Hiroaki, Kashiwa, Kouji
A simple phenomenological hybrid hadron-quark model with effective volume effects of baryons and chiral dynamics is investigated. The hybrid EoS naturally connects the low density baryonic matter with the high density quark matter. In the intermediat
Externí odkaz:
http://arxiv.org/abs/2310.09738
Autor:
Kashiwa, Kouji, Kouno, Hiroaki
Publikováno v:
Phys. Rev. D 105, 054017 (2022)
At sufficiently low temperature, without requiring any numerical data at finite real chemical potential, we can clarify the canonical partition function with fixed quark number via the imaginary chemical potential region with few ansatzs. The canonic
Externí odkaz:
http://arxiv.org/abs/2109.09273
Publikováno v:
Phys. Rev. D 104, 014012 (2021)
The nonanalyticity and the sign problem in the Z3-symmetric heavy quark model at low temperature are studied phenomenologically. For the free heavy quarks, the nonanalyticity is analyzed in the relation to the zeros of the grand canonical partition f
Externí odkaz:
http://arxiv.org/abs/2104.04732
Publikováno v:
symmetry 14, 1783, (2022)
The isospin chemical potential region is known as the sign-problem free region of quantum chromodynamics (QCD). In this paper, we introduce the isospin chemical potential to the three-dimensional three-state Potts model to mimic the dense QCD; e.g.,
Externí odkaz:
http://arxiv.org/abs/2103.12554
Autor:
Kashiwa, Kouji, Kouno, Hiroaki
Publikováno v:
Phys. Rev. D 103, 114020 (2021)
We investigate the nuclear and the quark matter at finite real chemical potential ($\mu_\mathrm{R}$) and low temperature from the viewpoint of the canonical sectors constructed via the imaginary chemical potential region. Based on the large $N_\mathr
Externí odkaz:
http://arxiv.org/abs/2103.11579
Recently, state-of-art LQCD calculations were done for $\pi$-meson and $\rho$-meson screening mass, ${M_{\pi}^{\rm scr}}(T)$ and ${M_{\rho}^{\rm scr}}(T)$. We consider the two-flavor system, and focus on temperature dependence $T$ of ${M_{\pi}^{\rm s
Externí odkaz:
http://arxiv.org/abs/2103.01512
Autor:
Kashiwa, Kouji, Kouno, Hiroaki
Publikováno v:
Phys. Rev. D 103, 014014 (2021)
To understand the phase transition phenomena, information theoretical approaches can pick up some important properties of the phenomena based on the probability distribution. In this paper, we show information theoretical aspects of the 3-dimensional
Externí odkaz:
http://arxiv.org/abs/2009.12067