中文
相关论文

相关论文: Heavy Quark Potential at Finite Temperature in AdS…

200 篇论文

We study the equation of state at finite temperature and density in two-flavor QCD with the RG-improved gluon action and the clover-improved Wilson quark action on a $ 16^3 \times 4$ lattice. Along the lines of constant physics at $m_{\rm…

高能物理 - 格点 · 物理学 2014-11-20 S. Ejiri , Y. Maezawa , N. Ukita , S. Aoki , T. Hatsuda , N. Ishii , K. Kanaya , T. Umeda

We report recent results of a non-perturbative determination of the static heavy-quark potential in quenched and dynamical lattice QCD at finite temperature. The real and imaginary part of this complex quantity are extracted from the…

高能物理 - 格点 · 物理学 2014-11-13 Yannis Burnier , Olaf Kaczmarek , Alexander Rothkopf

In this proceedings contribution we present a recent three-loop hard-thermal-loop perturbation theory (HTLpt) calculation of the thermodynamic potential for a finite temperature and chemical potential system of quarks and gluons. We compare…

高能物理 - 唯象学 · 物理学 2014-12-10 Michael Strickland , Jens O. Andersen , Aritra Bandyopadhyay , Najmul Haque , Munshi G. Mustafa , Nan Su

We give an example of modeling phenomenological heavy-quark potentials in a five-dimensional framework nowadays known as AdS/QCD. In particular we emphasize the absence of infrared renormalons.

高能物理 - 唯象学 · 物理学 2011-05-05 Oleg Andreev , Valentin I. Zakharov

Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the ${\cal N}$ supersymmetric Yang-Mills theory at large $N_c$ is carried out to the sub-leading term in the large 't Hooft coupling at nonzero temperatures.…

高能物理 - 唯象学 · 物理学 2015-03-19 Zi-qiang Zhang , Defu Hou , Hai-cang Ren , Lei Yin

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 use the AdS/CFT correspondence to compute the energy spectrum of heavy-light mesons in a N=2 SU(N) super Yang-Mills theory with two massive hypermultiplets. In the heavy quark limit, similar to QCD, we find that the excitation energies…

高能物理 - 理论 · 物理学 2009-01-06 Christopher P. Herzog , Stefan A. Stricker , Aleksi Vuorinen

We present a state-of-the-art determination of the complex valued static quark-antiquark potential at phenomenologically relevant temperatures around the deconfinement phase transition. Its values are obtained from non-perturbative lattice…

高能物理 - 格点 · 物理学 2015-03-05 Yannis Burnier , Olaf Kaczmarek , Alexander Rothkopf

We calculate the pressure (p), the energy density (\epsilon) and the baryon density (n_B) of QCD at finite temperatures (T) and chemical potentials (\mu). The recently proposed overlap improving multi-parameter reweighting technique is used…

高能物理 - 格点 · 物理学 2009-11-07 F. Csikor , G. I. Egri , Z. Fodor , S. D. Katz , K. K. Szabo , A. I. Toth

We present an improved analytic parametrisation of the complex in-medium heavy quark potential derived rigorously from the generalised Gauss law. To this end we combine in a self-consistent manner a non-perturbative vacuum potential with a…

高能物理 - 唯象学 · 物理学 2019-06-11 David Lafferty , Alexander Rothkopf

We present our first results on a direct computation of the complex in-medium heavy quark potential from realistic lattice QCD simulations. Ensembles with $N_\tau=12$ from the HotQCD and TUMQCD collaboration offer unprecedented high…

高能物理 - 格点 · 物理学 2019-02-20 Peter Petreczky , Alexander Rothkopf , Johannes Weber

We give a pedagogical presentation of heavy and light probe quarks in a thermal plasma using the AdS/CFT correspondence. Three cases are considered: external heavy and light quarks undergoing Brownian motion in the plasma, and an external…

高能物理 - 理论 · 物理学 2021-11-22 A. K. Mes , R. W. Moerman , J. P. Shock , W. A. Horowitz

We study an effective theory of QCD at high density in detail, including the finite temperature effects and the leading order correction in $1/\mu$ expansion. We investigate the Cooper pair gap equation and find that the color-flavor…

高能物理 - 唯象学 · 物理学 2009-10-31 Deog Ki Hong

A comprehensive study of the color singlet heavy quark states above T_c is given, using the Field Correlator Method (FCM) for nonperturbative Q{\bar Q} potentials and the screened Coulomb potential with the T-dependent Debye radius. Using…

高能物理 - 唯象学 · 物理学 2011-03-01 I. M. Narodetskiy , Yu. A. Simonov , A. I. Veselov

We study the extension of a phenomenologically successful quasiparticle model that describes lattice results of the equation of state of the deconfined phase of QCD for Tc <= T < 4 Tc, to finite quark chemical potential mu. The phase…

高能物理 - 唯象学 · 物理学 2009-11-10 M. A. Thaler , R. A. Schneider , W. Weise

We use AdS/CFT duality to study the thermodynamics of a strongly coupled N=2 supersymmetric large Nc SU(Nc) gauge theory with Nf =2 fundamental hypermultiplets. At finite temperature T and isospin chemical potential mu, a potential on the…

高能物理 - 理论 · 物理学 2009-11-11 Riccardo Apreda , Johanna Erdmenger , Nick Evans , Zachary Guralnik

We study the free energies of heavy quarks calculated from Polyakov loop correlation functions in full 2-flavour QCD using the p4-improved staggered fermion action. A small but finite Baryon number density is included via Taylor expansion…

高能物理 - 格点 · 物理学 2016-09-01 M. Doring , S. Ejiri , O. Kaczmarek , F. Karsch , E. Laermann

We explore various aspects of the motion of heavy quarks in strongly-coupled gauge theories, employing the AdS/CFT correspondence. Building on earlier work by Mikhailov, we study the dispersion relation and energy loss of an accelerating…

高能物理 - 理论 · 物理学 2010-02-10 Mariano Chernicoff , Alberto Guijosa

The heavy quark-antiquark potential in perturbative QCD is subject to ambiguities. We show how to derive a well-defined and stable short-distance potential that can be matched to results from lattice QCD simulations at intermediate…

高能物理 - 唯象学 · 物理学 2009-06-25 Alexander Laschka , Norbert Kaiser , Wolfram Weise

An updated heavy quark-antiquark potential is constructed by matching the short-distance perturbative part to long-distance lattice QCD results at an intermediate r scale. The static potential and the order 1/m potential are both analyzed…

高能物理 - 唯象学 · 物理学 2011-05-04 Alexander Laschka , Norbert Kaiser , Wolfram Weise