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相关论文: Quark Confinement and Deconfinement Transition in …

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We give another derivation of quark confinement in QCD from the viewpoint of the low-energy effective Abelian gauge theory of QCD obtained via Abelian projection. It is based on the recently discovered Berezinskii-Kosterlitz-Thouless phase…

高能物理 - 理论 · 物理学 2009-10-31 Kei-Ichi Kondo

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

I propose to reformulate the gauge field theory as the perturbative deformation of a novel topological quantum field theory. It is shown that this reformulation leads to quark confinement in QCD$_4$. Similarly, the fractional charge…

高能物理 - 理论 · 物理学 2007-05-23 Kei-Ichi Kondo

In the past few years, we have presented a new way of considering quark confinement. Through a careful choice of a Cho-Duan-Ge Abelian Decomposition, we can construct the QCD Wilson Loop in terms of an Abelian restricted field. The…

高能物理 - 格点 · 物理学 2014-11-05 Nigel Cundy , Yongmin Cho , Weonjong Lee

We give an outline of a recent proof that the low-energy effective gauge theory exhibiting quark confinement due to magnetic monopole condensation can be derived from QCD without any specific assumption. We emphasize that the low-energy…

高能物理 - 理论 · 物理学 2008-11-26 Kei-Ichi Kondo

I summarise recent lattice results on the QCD confinement mechanism in the maximally Abelian projection.

高能物理 - 唯象学 · 物理学 2007-05-23 Gunnar S. Bali

In a QCD-like strongly coupled gauge theory at large N_c, using the AdS/CFT correspondence, we find that heavy quark deconfinement is accompanied by a coherent condensation of higher meson resonances. This is revealed in non-equilibrium…

高能物理 - 理论 · 物理学 2015-06-11 Koji Hashimoto , Shunichiro Kinoshita , Keiju Murata , Takashi Oka

Using combined strong coupling and hopping parameter expansions, we derive an effective three-dimensional theory from thermal lattice QCD with heavy Wilson quarks. The theory depends on traced Polyakov loops only and correctly reflects the…

高能物理 - 格点 · 物理学 2012-01-27 Michael Fromm , Jens Langelage , Stefano Lottini , Owe Philipsen

It is investigated how quark confinement depends on the number of flavors, $N_f$, in QCD on the lattice with Wilson quarks. We strengthen and extend the conclusion reported at {\it Lattice 91}: (1) For $N_f \le 6$ the finite temperature…

高能物理 - 格点 · 物理学 2009-10-22 Y. Iwasaki , K. Kanaya , S. Sakai , T. Yoshie

We investigate the deconfining phase transition in SU(3) pure gauge theory and in full QCD with two flavors of staggered fermions. The phase transition is detected by measuring the free energy in presence of an abelian monopole background…

高能物理 - 格点 · 物理学 2009-11-10 Paolo Cea , Leonardo Cosmai , Massimo D'Elia

We give a brief introduction on finite temperature phase transitions in lattice QCD including a discussion on the identification of first order transitions. We present a study of the deconfinement phase transition of one-flavour QCD, using…

高能物理 - 格点 · 物理学 2007-05-23 C. Alexandrou , A. Boriçi , A. Feo , Ph. de Forcrand , A. Galli , F. Jegerlehner , T. Takaishi

The 4q effective Lagrangian and the gap equation are derived for light quarks in the confinement phase of QCD. The modification of the confining string due to finite quark density (chemical quark potential \mu) is observed. As a surprising…

高能物理 - 唯象学 · 物理学 2007-05-23 Yu. A. Simonov

The flavor dependence of the QCD phase diagram presents universal properties in the heavy quark limit. For the wide class of models where the quarks are treated at the one-loop level, we show, for arbitrary chemical potential, that the…

高能物理 - 理论 · 物理学 2018-12-11 Jan Maelger , Urko Reinosa , Julien Serreau

We study the phase diagram of QCD with the help of order parameters for chiral symmetry breaking and quark confinement. We also introduce a new order parameter for the confinement phase transition, which is related to the quark density. It…

高能物理 - 唯象学 · 物理学 2011-02-02 Jens Braun , Lisa M. Haas , Florian Marhauser , Jan M. Pawlowski

We investigate the deconfining phase transition in SU(3) pure gauge theory and in full QCD with two flavors of staggered fermions by means of a gauge invariant thermal partition functional. In the pure gauge case our finite size scaling…

高能物理 - 格点 · 物理学 2008-11-26 P. Cea , L. Cosmai , M. D'Elia

We investigate the phase structure of lattice QCD for the general number of flavors in the parameter space of gauge coupling constant and quark mass, employing the one-plaquette gauge action and the standard Wilson quark action. Performing…

高能物理 - 格点 · 物理学 2009-11-10 Y. Iwasaki , K. Kanaya , S. Kaya , S. Sakai , T. Yoshie

The phase structure of QCD with various number of flavors is studied for Wilson quarks. For the case of $N_F=3$ we find that the finite temperature deconfining transition is of first order in the chiral limit on an $N_t=4$ lattice. Together…

高能物理 - 格点 · 物理学 2016-08-14 Y. Iwasaki , K. Kanaya , S. Sakai , T. Yoshié

We have previously found analytically a very unusual and unexpected form of confinement in SU(3) Yang-Mills theory. This confinement occurs in the deconfined phase of the theory. The free energy of a single static test quark diverges, even…

高能物理 - 格点 · 物理学 2009-10-31 K. Holland

Some recent theoretical developments of the QCD phase diagram are summarized. Chiral symmetry restoration and the confinement/deconfinement transition at nonzero temperature and quark densities are analyzed in the framework of an effective…

高能物理 - 唯象学 · 物理学 2012-11-08 Bernd-Jochen Schaefer , Mathias Wagner

We study the color-flavor locked phase of QCD with three massless quarks at high chemical potential and small non zero temperatures. We make use of the recently introduced effective action to describe such a phase. We obtain the exact order…

高能物理 - 唯象学 · 物理学 2009-10-31 R. Casalbuoni , R. Gatto
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