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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

We determine the onset of Quarkyonic Matter corresponding to values of temperature and baryon chemical potential at which the quark phase space density becomes one. At zero temperature for baryon chemical potentials below the mass of the…

核理论 · 物理学 2024-09-19 Marcus Bluhm , Yuki Fujimoto , Larry McLerran , Marlene Nahrgang

The boiling of possible quark nuggets during the quark-hadron phase transition of the Universe at nonzero chemical potential is revisited within the microscopic Brueckner-Hartree-Fock approach employed for the hadron phase, using two kinds…

宇宙学与河外天体物理 · 物理学 2014-08-07 Ang Li , Tong Liu , Philipp Gubler , Ren-Xin Xu

We consider the possibility that color deconfinement and chiral symmetry restoration do not coincide in dense baryonic matter at low temperature. As a consequence, a state of massive "constituent" quarks would exist as an intermediate phase…

高能物理 - 唯象学 · 物理学 2011-02-09 P. Castorina , R. V. Gavai , H. Satz

We propose a scheme to determine the chemical potential and baryon number density of the hadron-quark phase transition in cold dense strong interaction matter (compact star matter). The hadron matter is described with the relativistic mean…

高能物理 - 唯象学 · 物理学 2023-05-26 Zhan Bai , Yu-xin Liu

With combined hopping parameter and strong coupling expansions, we calculate a dimensionally reduced Polyakov-loop effective theory valid for heavy quarks at nonzero temperature and arbitrary chemical potential. We numerically compute the…

高能物理 - 格点 · 物理学 2015-06-11 Michael Fromm , Jens Langelage , Stefano Lottini , Mathias Neuman , Owe Philipsen

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.…

高能物理 - 唯象学 · 物理学 2016-11-23 M. N. Chernodub , B. L. Ioffe

The status of lattice QCD investigations at high temperature is reviewed. After a short introduction into thermal QCD on the lattice we report on the present understanding of the phase diagram and the equation of state, in particular in…

高能物理 - 唯象学 · 物理学 2009-11-10 E. Laermann , O. Philipsen

We study the phase diagram of quark matter at finite temperature (T) and finite chemical potential (mu) in the strong coupling limit of lattice QCD for color SU(3). We derive an analytical expression of the effective free energy as a…

高能物理 - 格点 · 物理学 2008-11-26 N. Kawamoto , K. Miura , A. Ohnishi , T. Ohnuma

We study the QCD phase diagram at finite temperature and baryon chemical potential by relating the behavior of the light-quark condensate to the threshold energy for the onset of perturbative QCD. These parameters are connected to the…

高能物理 - 唯象学 · 物理学 2015-05-28 Alejandro Ayala , Adnan Bashir , C. A. Dominguez , Enif Gutierrez , M. Loewe , Alfredo Raya

We construct a simple two-phase equation of state intended to resemble that of compressed baryon-rich matter and then introduce a gradient term in the compressional energy density to take account of fintie-range effects in non-uniform…

核理论 · 物理学 2009-06-30 Jorgen Randrup

We review recent results on QCD at finite temperature and non-vanishing baryon number density. We focus on observables which are of immediate interest to experimental searches for the Quark Gluon Plasma, i.e. the phase transition…

高能物理 - 格点 · 物理学 2015-06-25 Frithjof Karsch

A qualitative analysis of the chiral phase transition in QCD at 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 and quark condesate $\eta=…

高能物理 - 唯象学 · 物理学 2007-05-23 B. L. Ioffe

Current status of theoretical researches on the QCD phase diagram at finite temperature and baryon chemical potential is reviewed with special emphasis on the origin of various phases and their symmetry breaking patterns. Topics include;…

高能物理 - 唯象学 · 物理学 2015-03-17 Kenji Fukushima , Tetsuo Hatsuda

As part of an ongoing effort to characterize the high temperature phase of QCD, in a numerical simulation using the staggered fermion scheme, we measure the quark baryon density in the vicinity of a fixed test quark at high temperature and…

In the present work we study the hadron-quark phase transition with boson condensation in asymmetric matter by investigating the binodal surface and extending it to finite temperature in order to mimic the QCD phase diagram. We consider a…

核理论 · 物理学 2011-05-05 Rafael Cavagnoli , Constança Providência , Debora P. Menezes

We examine baryonic matter at quark chemical potential of the order of the confinement scale, $\mu_q\sim \lqcd$. In this regime, quarks are supposed to be confined but baryons are close to the ``tightly packed limit'' where they nearly…

核理论 · 物理学 2013-05-29 Stefano Lottini , Giorgio Torrieri

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.…

高能物理 - 唯象学 · 物理学 2009-11-10 M. N. Chernodub , B. L. Ioffe

By using the finite temperature quantum field theory, we calculate the finite temperature effective potential and extend the improved quark mass density-dependent model to finite temperature. It is shown that this model can not only…

核理论 · 物理学 2008-11-26 Chen Wu , Ru-Keng Su

We establish a holographic bottom-up model which covers both the baryonic and quark matter phases in cold and dense QCD. This is obtained by including the baryons using simple approximation schemes in the V-QCD model, which also includes…

高能物理 - 唯象学 · 物理学 2020-01-08 Takaaki Ishii , Matti Järvinen , Govert Nijs