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相关论文: Phase structure and critical phenomena in 2-flavor…

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We discuss the phase structure of QCD for $N_f=2$ and $N_f=2+1$ dynamical quark flavours at finite temperature and baryon chemical potential. It emerges dynamically from the underlying fundamental interactions between quarks and gluons in…

高能物理 - 唯象学 · 物理学 2020-04-01 Wei-jie Fu , Jan M. Pawlowski , Fabian Rennecke

Recent theoretical investigations have unveiled a rich structure in the quantum chromodynamics (QCD) phase diagram which consists of quark gluon plasma (QGP) and the hadronic phases but also supports the existence of a cross-over transition…

高能物理 - 唯象学 · 物理学 2014-11-20 P. K. Srivastava , S. K. Tiwari , C. P. Singh

We investigate the critical end point (CEP) of QCD with two flavours of light dynamical quarks at finite lattice cutoff a=1/4T using a Taylor expansion of the baryon number susceptibility. We find a strong volume dependence of the position…

高能物理 - 格点 · 物理学 2007-05-23 Rajiv Gavai , Sourendu Gupta

We summarize recent results for the phase structure of QCD at finite temperature and light-quark chemical potential for N_f=2+1 and N_f=2+1+1 dynamical quark flavors. We discuss order parameters for the chiral and deconfinement transitions…

高能物理 - 唯象学 · 物理学 2014-10-02 Christian S. Fischer , Jan Luecker , Christian A. Welzbacher

Aiming to understand the phase structure of lattice QCD at nonzero temperature and density, we study the phase transitions of QCD in an extended parameter space, where the number of flavor and quark masses are considered as parameters.…

高能物理 - 格点 · 物理学 2016-11-23 Shinji Ejiri , Ryo Iwami , Norikazu Yamada

We present a Bayesian holographic model constructed by integrating the equation of state and baryon number susceptibility at zero chemical potential from lattice QCD. The model incorporates error estimates derived from lattice data. With…

高能物理 - 唯象学 · 物理学 2025-07-01 Liqiang Zhu , Xun Chen , Kai Zhou , Hanzhong Zhang , Mei Huang

QCD phase diagram in the $T - \mu$ plane and the equation of state for pure gluon, 2-flavor, 2+1-flavor systems, and 2+1+1-flavor systems have been investigated using the Einstein-Maxwell-Dilaton (EMD) framework at finite temperature and…

高能物理 - 唯象学 · 物理学 2025-01-24 Xun Chen , Mei Huang

We construct a holographic QCD model based on the Einstein--dilaton--flavor framework with 2+1 flavors and investigate its phase structure using machine-learning techniques. At zero chemical potential, the model reproduces the equation of…

高能物理 - 唯象学 · 物理学 2025-11-25 Jin-Yang Shen , Xin-Yi Liu , Jin-Rui Wu , Yue-Liang Wu , Zhen Fang

To quantitatively provide reliable predictions for the hot and dense QCD matter, a holographic model should be adjusted to describe first-principles lattice results available at vanishing baryon chemical potential. The equation of state…

高能物理 - 唯象学 · 物理学 2025-06-26 Qingxuan Fu , Song He , Li Li , Zhibin Li

We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and nonzero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed, and the relevant…

高能物理 - 唯象学 · 物理学 2015-08-10 Pedro Costa , C. A. de Sousa , M. C. Ruivo , H. Hansen

We map out the QCD phase structure at finite temperature and chemical potential for 2-flavour and 2 + 1-flavour QCD. This is done within a generalised functional approach to QCD put forward in arXiv:2002.07500 [hep-ph]. Specifically we…

高能物理 - 唯象学 · 物理学 2021-08-18 Fei Gao , Jan M. Pawlowski

We analyze the many-flavor phase diagram of quantum electrodynamics (QED) in 2+1 (Euclidean) space-time dimensions. We compute the critical flavor number above which the theory is in the quasi-conformal massless phase. For this, we study…

高能物理 - 唯象学 · 物理学 2014-08-12 Jens Braun , Holger Gies , Lukas Janssen , Dietrich Roscher

We discuss the flavor dependence of the pressure and critical temperature calculated in QCD with 2, 2+1 and 3 flavors using improved gauge and staggered fermion actions on lattices with temporal extent Nt=4. For T > 2 Tc we find that bulk…

高能物理 - 格点 · 物理学 2017-08-23 F. Karsch , E. Laermann , A. Peikert , Ch. Schmidt , S. Stickan

The existence of the QCD critical point at non-zero baryon density is not only of great interest for experimental physics but also a challenge for the theory. Any hint of the existence of the first order phase transition and, particularly,…

高能物理 - 格点 · 物理学 2010-09-07 Anyi Li

Despite intense experimental and theoretical research, the QCD phase diagram at finite baryon density remains to a large extent unexplored. From the theoretical side, the obvious non-perturbative approach is lattice QCD simulations, which…

Locating the critical endpoint of QCD and the region of a first-order phase transition at finite baryon chemical potential is an active research area for QCD matter. We provide a gravitational dual description of QCD matter at finite baryon…

高能物理 - 理论 · 物理学 2023-02-21 Rong-Gen Cai , Song He , Li Li , Yuan-Xu Wang

We study the phase structure of QCD at high temperature and density by lattice QCD simulations adopting a histogram method. The quark mass dependence and the chemical potential dependence of the nature of phase transition are investigated…

高能物理 - 格点 · 物理学 2013-07-25 Shinji Ejiri

We investigate the phase structure of QCD at finite temperature and light-quark chemical potential. We improve upon earlier results for N_f=2+1 dynamical quark flavors and investigate the effects of charm quarks in an extension to…

高能物理 - 唯象学 · 物理学 2014-09-05 Christian S. Fischer , Jan Luecker , Christian A. Welzbacher

We study the rotation effects of the hot and dense QCD matter in a non-perturbative regime by the gauge/gravity duality. We use the gravitational model that is designated to match the state-of-the-art lattice data on the thermal properties…

高能物理 - 唯象学 · 物理学 2023-05-01 Yan-Qing Zhao , Song He , Defu Hou , Li Li , Zhibin Li

We present a fully back-reacted Einstein--Maxwell--Dilaton--flavor model with dynamical light and strange sectors, calibrated to lattice QCD using a machine-learning--assisted spectral method. The model reproduces the 2+1-flavor equation of…

高能物理 - 唯象学 · 物理学 2025-12-24 Jin-Yang Shen , Xin-Yi Liu , Jin-Rui Wu , Yue-Liang Wu , Zhen Fang
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