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相关论文: Inhomogeneous instabilities in high-density QCD

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Dense QCD matter may exhibit crystalline phases. Their existence is reflected in a moat regime, where mesonic correlations feature spatial modulations. We study the realtime properties of pions at finite temperature and density in QCD in…

高能物理 - 唯象学 · 物理学 2025-05-28 Wei-jie Fu , Jan M. Pawlowski , Robert D. Pisarski , Fabian Rennecke , Rui Wen , Shi Yin

Dense QCD matter can exhibit spatially modulated regimes. They can be characterized by particles with a moat spectrum, where the minimum of the energy is over a sphere at nonzero momentum. Such a moat regime can either be a precursor for…

高能物理 - 唯象学 · 物理学 2021-10-07 Fabian Rennecke , Robert D. Pisarski

QCD at large density reveals a rich phase structure, ranging from a potential critical end point and inhomogeneous phases or moat regimes to color superconducting ones with competing order effects. Resolving this region in the phase diagram…

高能物理 - 理论 · 物理学 2023-09-15 Friederike Ihssen , Jan M. Pawlowski , Franz R. Sattler , Nicolas Wink

In this work we continue our efforts to study the existence of a phase with an inhomogeneous, i.e., spatially varying, chiral condensate in QCD. To this end we employ a previously established method of stability analysis of the two-particle…

高能物理 - 唯象学 · 物理学 2024-06-11 Theo F. Motta , Julian Bernhardt , Michael Buballa , Christian S. Fischer

We provide a short review of the progress made in the past decade with functional QCD in the description of the phase structure of QCD. We summarise the most important technical aspects of the framework, discuss strategies for truncations…

高能物理 - 唯象学 · 物理学 2026-03-13 Christian S. Fischer , Jan M. Pawlowski

Dense QCD matter can feature a moat regime, where the static energy of mesons is minimal at nonzero momentum. Valuable insights into this regime can be gained using low-energy models. This, however, requires a careful assessment of model…

高能物理 - 唯象学 · 物理学 2026-04-15 Fabian Rennecke , Shi Yin

Inhomogeneous chiral phase is discussed in the presence of the magnetic field. A topological aspect is pointed out for the complex order parameter, in relation to the spectral asymmetry of the Dirac operator. It induces an anomalous baryon…

高能物理 - 唯象学 · 物理学 2015-06-18 T. Tatsumi , K. Nishiyama , S. Karasawa

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 investigate the QCD chiral phase transition at high baryon number density within the linear quark meson model for two flavors. The method we employ is based on an exact renormalization group equation for the free energy. Truncated…

高能物理 - 唯象学 · 物理学 2010-02-04 J. Berges , D. -U. Jungnickel , C. Wetterich

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

The chiral condensate, which is constant in vacuum, may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs. We review the current…

高能物理 - 唯象学 · 物理学 2015-06-19 Michael Buballa , Stefano Carignano

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…

高能物理 - 唯象学 · 物理学 2008-11-26 Kenji Fukushima

In this paper we study the dynamical instability of Sakai-Sugimoto's holographic QCD model at finite baryon density. In this model, the baryon density, represented by the smeared instanton on the worldvolume of the probe D8-\overline{D8}…

高能物理 - 理论 · 物理学 2011-05-13 Wu-yen Chuang , Shou-Huang Dai , Shoichi Kawamoto , Feng-Li Lin , Chen-Pin Yeh

We review recent work on the phase structure of QCD at very high baryon density. We introduce the phenomenon of color superconductivity and discuss how the quark masses and chemical potentials determine the structure of the superfluid quark…

核理论 · 物理学 2008-11-26 Thomas Schaefer , Edward Shuryak

The possible occurrence of crystalline or inhomogeneous phases in the QCD phase diagram at large chemical potential has been under investigation for over thirty years. Such phases are present in models of QCD such as the Gross-Neveu model…

高能物理 - 唯象学 · 物理学 2023-06-28 Theo F. Motta , Julian Bernhardt , Michael Buballa , Christian S. Fischer

Charting the phase diagram of Quantum Chromodynamics (QCD) at large density is a challenging task due to the complex action problem in lattice simulations. Through simulations at imaginary baryon chemical potential $\mu_B$ we observe that,…

Heavy-ion collisions at small beam energies have the potential to reveal the rich phase structure of QCD at nonzero temperature and density. Among the possible phases are regimes which feature periodic modulations of the spatial structure,…

高能物理 - 唯象学 · 物理学 2022-03-30 Robert D. Pisarski , Fabian Rennecke

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 show how the introduction of a finite baryon density may trigger spontaneous parity violation in the hadronic phase of QCD. Since this involves strong interaction physics in an intermediate energy range we approximate QCD by a \sigma…

高能物理 - 唯象学 · 物理学 2008-11-26 A. A. Andrianov , D. Espriu

We use a variational procedure to study finite density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons. We find that uniform states with conventional chiral symmetry breaking have…

高能物理 - 唯象学 · 物理学 2008-11-26 Krishna Rajagopal
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