中文
相关论文

相关论文: Towards the phase diagram of cold and dense heavy …

200 篇论文

We consider the difficulties of finite density QCD from the canonical formalism. We present results for small baryon numbers, where the sign problem can be controlled, in particular by supplementing the mu=0 sampling with imaginary mu…

高能物理 - 格点 · 物理学 2009-11-10 Slavo Kratochvila , Philippe de Forcrand

The QCD phase diagram in the space of temperature and imaginary baryon chemical potential has been an interesting subject in numerical lattice QCD simulations because of the absence of the sign problem and its deep structure related to…

高能物理 - 理论 · 物理学 2023-08-07 Shun K. Kobayashi , Takahiro Yokokura , Kazuya Yonekura

We consider thermal QCD in the large N_C limit, mainly in 1+1 dimensions. The gauge coupling is only taken into account to minimal order, by projection onto colour singlets. An expression for the free energy, exact as N_C goes to infinity,…

高能物理 - 唯象学 · 物理学 2016-09-06 Joakim Hallin , David Persson

We discuss the generic phase diagrams of pure systems that remain fluid near zero temperature. We call this phase a quantum fluid. We argue that the signature of the transition is the change of sign of the chemical potential, being negative…

量子气体 · 物理学 2011-09-09 Victor Romero-Rochin

In the framework of the $N_f = 2+1$ flavor (axial)vector meson extended Polyakov quark meson model we investigate the QCD phase diagram at finite temperature and density. We use a $\chi^2$ minimization procedure to parameterize the model…

高能物理 - 唯象学 · 物理学 2017-11-30 Péter Kovács , György Wolf

We study the temperature dependence of the strange and charm quark chemical potentials in the phase diagram of nuclear matter, within a modified and generalized hadron gas model, in order to consider phase transitions and to describe…

高能物理 - 唯象学 · 物理学 2017-08-23 P. G. Katsas , A. D. Panagiotou , T. Gountras

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 calculate the deconfinement line of transitions for large Nc QCD at finite temperature and chemical potential in two different regimes: weak coupling in the continuum, and, strong coupling on the lattice, working in the limit where Nf is…

高能物理 - 理论 · 物理学 2015-06-05 Timothy J. Hollowood , Joyce C. Myers

We review theoretical approaches to explore the phase diagram of nuclear and quark matter at high baryon density. We first look over the basic properties of quantum chromodynamics (QCD) and address how to describe various states of QCD…

高能物理 - 唯象学 · 物理学 2013-04-03 Kenji Fukushima , Chihiro Sasaki

We present the crossover line between the quark gluon plasma and the hadron gas phases for small real chemical potentials. First we determine the effect of imaginary values of the chemical potential on the transition temperature using…

高能物理 - 格点 · 物理学 2015-11-13 R. Bellwied , S. Borsanyi , Z. Fodor , J. Günther , S. D. Katz , C. Ratti , K. K. Szabo

We study the free energy of a static quark in QCD with 2+1 flavors in a wide temperature region, 116 MeV $< T < $ 5814 MeV, using the highly improved staggered quark (HISQ) action. We analyze the transition region in detail, obtain the…

高能物理 - 格点 · 物理学 2016-06-21 A. Bazavov , N. Brambilla , H. -T. Ding , P. Petreczky , H. -P. Schadler , A. Vairo , J. H. Weber

We review results for the phase diagram of QCD, the properties of quarks and gluons and the resulting properties of strongly interacting matter at finite temperature and chemical potential. The interplay of two different but related…

高能物理 - 唯象学 · 物理学 2019-03-27 Christian S. Fischer

We summarise recent progress in simulating QCD at nonzero baryon density using complex Langevin dynamics. After a brief outline of the main idea, we discuss gauge cooling as a means to control the evolution. Subsequently we present a status…

高能物理 - 格点 · 物理学 2014-12-03 Gert Aarts , Felipe Attanasio , Benjamin Jäger , Erhard Seiler , Denes Sexty , Ion-Olimpiu Stamatescu

We investigate the phase diagram of QCD with heavy quarks at finite temperature and chemical potential in the context of background field methods. In particular, we use a massive extension of the Landau-DeWitt gauge which is motivated by…

高能物理 - 理论 · 物理学 2015-07-09 Urko Reinosa , Julien Serreau , Matthieu Tissier

We demonstrate how to locate the critical endpoint of the QCD phase transition by means of simulations at imaginary \mu. For the three flavor theory, we present numerical results for the pseudo-critical line as a function of chemical…

高能物理 - 格点 · 物理学 2009-11-10 Ph. de Forcrand , O. Philipsen

I review recent developments in determining the QCD phase diagram by means of lattice simulations. Since the invention of methods to side-step the sign problem a few years ago, a number of additional variants have been proposed, and…

高能物理 - 格点 · 物理学 2007-05-23 Owe Philipsen

We discuss an effective theory for QCD at finite chemical potential and non-zero temperature, where QCD is reduced to its center degrees of freedom. The effective action can be mapped to a flux representation, where the complex phase…

高能物理 - 格点 · 物理学 2012-08-07 Ydalia Delgado , Hans Gerd Evertz , Christof Gattringer

We study a model of quark-gluon plasma of 2+1 flavors Quantum Chromodynamics in terms of quasiparticles propagating in a condensate of Polyakov loops. The Polyakov loop is coupled to quasiparticles by means of a gas-like effective…

高能物理 - 唯象学 · 物理学 2015-06-17 Lucia Oliva , Paolo Castorina , Vincenzo Greco , Marco Ruggieri

We investigate the properties of QCD at finite isospin chemical potential at zero and non-zero temperatures. This theory is not affected by the sign problem and can be simulated using Monte-Carlo techniques. With increasing isospin chemical…

高能物理 - 格点 · 物理学 2018-04-18 Bastian B. Brandt , Gergely Endrodi , Sebastian Schmalzbauer

We propose a prescription to constrain the chiral effective model approach to the QCD phase diagram using the thermal Statistical Model, which is a description consistent with the experimental data at the freeze-out. In the transition…

高能物理 - 唯象学 · 物理学 2011-06-27 Kenji Fukushima