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The chiral phase transition in QCD at finite chemical potential and temperature can be characterized for small chemical potential by its curvature and the transition temperature. The curvature is accessible to QCD lattice simulations, which…

High Energy Physics - Phenomenology · Physics 2012-07-03 Jens Braun , Bertram Klein , Bernd-Jochen Schaefer

In order for clarifying what are the essential thermal effects that govern the chiral phase transition at finite temperature, we investigate, in the real-time thermal QED, the consequences of the Hard-Thermal-Loop (HTL) resummed…

High Energy Physics - Phenomenology · Physics 2009-11-07 Yuko Fueki , Hisao Nakkagawa , Hiroshi Yokota , Koji Yoshida

I revisit the phase structure of hot and dense matter out of quarks and gluons with some historical consideration on the color deconfinement and chiral phase transitions. My goal is to make clear which part of the QCD phase diagram is under…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kenji Fukushima

The properties and the isospin dependence of the liquid-gas phase transition in hot asymmetric nuclear matter have been investigated within the framework of the finite temperature Brueckner-Hartree-Fock approach extended to include the…

Nuclear Theory · Physics 2008-11-26 W. Zuo , Z. H. Li , A. Li , U. Lombardo

We study the finite-temperature phase structure and the transition temperature of QCD with two flavors of dynamical quarks on a lattice with the temporal size $N_t=4$, using a renormalization group improved gauge action and the Wilson quark…

An effective relativistic kinetic theory has been constructed for an interacting system of quarks, anti-quarks and gluons within a quasi-particle description of hot QCD medium at finite temperature and baryon chemical potential, where the…

Nuclear Theory · Physics 2018-03-07 Sukanya Mitra , Vinod Chandra

We investigate temperature fluctuations in hot QCD matter using a 3-flavor Polyakov-loop extended Nambu--Jona-Lasinio (PNJL) model. The high-order cumulant ratios $R_{n2}$ ($n>2$) exhibit non-monotonic variations across the chiral phase…

Nuclear Theory · Physics 2026-04-23 He Liu , Peng Wu , Hong-Ming Liu , Peng-Cheng Chu

We study the quark spectrum at nonzero temperature and density near the critical point (CP) of the chiral phase transition incorporating effects of the scalar- and pseudoscalar-density fluctuations in a chiral effective model with a nonzero…

High Energy Physics - Phenomenology · Physics 2015-01-07 Masakiyo Kitazawa , Teiji Kunihiro , Yukio Nemoto

A qualitative analysis of the chiral phase transition in QCD with two massless quarks and non--zero baryon density is performed. It is assumed that at zero baryonic density, \rho=0, the temperature phase transition is of the second order.…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. N. Chernodub , B. L. Ioffe

We investigated the effects of nonequilibrium and collision terms on the deconfinement phase transition of an expanding quark system in Friedberg-Lee model in relaxation time approximation. By calculating the effective quark potential, the…

High Energy Physics - Phenomenology · Physics 2009-11-10 Zhenwei Yang , Pengfei Zhuang

A phase transition indicates a sudden change in the properties of a large system. For temperature-driven phase transitions this is related to non-analytic behavior of the free energy density at the critical temperature: The knowledge of the…

Statistical Mechanics · Physics 2015-03-20 Markus Heyl , Anatoli Polkovnikov , Stefan Kehrein

We investigate multipartite quantum correlation (MQC), spatially anisotropic coupling, and finite temperature effects in a triangular Ising system with tunable interactions using the exact diagonalization method. We demonstrate that…

Quantum Physics · Physics 2023-06-27 Jun Ren , Fang-Man Liu , Yan-Chao Li , Li-Hang Ren , Z. D. Wang , Yan-Kui Bai

The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature. We compute the modified effective potential in the linear sigma model with quarks to one loop in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Eduardo S. Fraga , Ana Júlia Mizher

We consider the chiral phase transition relevant for QCD matter at finite temperature but with vanishing baryon density. Presumably, the chiral phase transition is of second order for two-flavor QCD in the chiral limit. Near the transition…

High Energy Physics - Theory · Physics 2025-07-30 Yanyan Bu , Zexin Yang

To reflect the asymptotic freedom in the thermal direction, a temperature-dependent coupling was proposed in the literature. We investigate its effect on QCD matter with and without strong magnetic fields. Compared with the fixed coupling…

High Energy Physics - Phenomenology · Physics 2017-10-11 Li Yang , Xin-jian Wen

We determine the magnetization of Quantum Chromodynamics (QCD) for several temperatures around and above the transition between the hadronic and the quark-gluon phases of strongly interacting matter. We obtain a paramagnetic response that…

High Energy Physics - Lattice · Physics 2014-02-05 G. S. Bali , F. Bruckmann , G. Endrodi , A. Schafer

We present results on the chiral and deconfinement properties of the QCD transition at finite temperature. Calculations are performed with 2+1 flavors of quarks using the p4, asqtad and HISQ/tree actions. Lattices with temporal extent…

Transition of molecular hydrogen to atomic ionized state with increase of temperature and pressure poses still unresolved problems for experimental methods and theory. Here we analyze the dynamics of this transition and show its…

Materials Science · Physics 2020-03-25 Ilya D. Fedorov , Nikita D. Orekhov , Vladimir V. Stegailov

We investigate the perturbative and non-perturbative aspects of heavy quark transport in a thermal QCD medium. Based on the Soft-Hard Factorized Model (SHFM), we extend the original perturbative framework to the near-critical temperature…

High Energy Physics - Phenomenology · Physics 2025-10-14 Jiazhen Peng , Jiale Lou , Fei Sun , Kejun Wu , Wei Xie , Zuman Zhang , Shuang Li , Sa Wang

The high-order cumulants of conserved charges are suggested to be sensitive observables to search for the critical point of Quantum Chromodynamics (QCD). This has been calculated to the sixth order in experiments. Corresponding theoretical…

High Energy Physics - Lattice · Physics 2016-06-01 Xue Pan , Li-Zhu Chen , Yuan-Fang Wu