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相关论文: Viscosity Correlators in Improved Holographic QCD

200 篇论文

The heavy quark potential of a thermal Yang-Mills theory in strong coupling limit is explored in terms of the holographic principle. With a fairly general AdS/QCD metric the heavy quark potential displays a kink-like screening in the plasma…

高能物理 - 唯象学 · 物理学 2014-01-22 Yan Wu , Defu Hou , Hai-cang Ren

We apply the relation between deep learning (DL) and the AdS/CFT correspondence to a holographic model of QCD. Using a lattice QCD data of the chiral condensate at a finite temperature as our training data, the deep learning procedure…

高能物理 - 理论 · 物理学 2020-02-14 Koji Hashimoto , Sotaro Sugishita , Akinori Tanaka , Akio Tomiya

We consider a holographic model of chiral superfluidity whose bulk is Einstein Yang-Mills and compute viscosity and conductivity responses away from the probe limit. We calculate Hall viscosity and analyze its relationship to the superfluid…

高能物理 - 理论 · 物理学 2015-02-27 Siavash Golkar , Matthew M. Roberts

Holography for UV-incomplete gauge theories is important but poorly understood. A paradigmatic example is $d=4$, $\mathcal{N}=4$ super Yang-Mills coupled to $N_f$ quark flavors, which possesses a Landau pole at a UV scale $\Lambda_{LP}$.…

高能物理 - 理论 · 物理学 2017-03-08 Anton F. Faedo , David Mateos , Christiana Pantelidou , Javier Tarrio

We construct an analytic solution of the Einstein-SU(2)-Yang-Mills system as the holographic dual of an anisotropic superfluid near its critical point, up to leading corrections in both the inverse Yang-Mills coupling and a symmetry…

高能物理 - 理论 · 物理学 2012-07-24 Pallab Basu , Jae-Hyuk Oh

We study the accuracy and predictive power of conformal perturbation theory by a comparison with lattice results in the neighborhood of the finite-temperature deconfinement transition of SU(2) Yang-Mills theory, assuming that the infrared…

高能物理 - 格点 · 物理学 2019-09-05 Michele Caselle , Nicodemo Magnoli , Alessandro Nada , Marco Panero , Marcello Scanavino

A new topological conformal field theory in four Euclidean dimensions is constructed from N=4 super Yang-Mills theory by twisting the whole of the conformal group with the whole of the R-symmetry group, resulting in a theory that is…

高能物理 - 理论 · 物理学 2009-11-07 Paul de Medeiros , Jose Figueroa-O'Farrill , Christopher Hull , Bill Spence

Using the anti-de Sitter/conformal field theory correspondence, we relate the shear viscosity \eta of the finite-temperature N=4 supersymmetric Yang-Mills theory in the large N, strong-coupling regime with the absorption cross section of…

高能物理 - 理论 · 物理学 2010-02-18 G. Policastro , D. T. Son , A. O. Starinets

We discuss the use of strong coupling expansions for Yang-Mills theory and QCD at finite temperature and density. In particular we consider the onset of temperature effects for the free energy and screening masses, derive the hadron…

高能物理 - 格点 · 物理学 2011-03-10 Jens Langelage , Owe Philipsen

By studying the effect of the order(\alpha'^3) string theory corrections to type IIB supergravity, including those corrections involving the Ramond-Ramond five-form field strength, we obtain the corrected equations of motion of an Abelian…

高能物理 - 理论 · 物理学 2010-04-30 Babiker Hassanain , Martin Schvellinger

In this letter we study how the exact non-perturbative integrability methods in 4D N=4 Super-Yang-Mills can work efficiently together with the numerical conformal bootstrap techniques to go beyond the spectral observables and access…

高能物理 - 理论 · 物理学 2022-01-19 Andrea Cavaglià , Nikolay Gromov , Julius Julius , Michelangelo Preti

We determine a next-to-leading order result for the shear channel thermal spectral function in SU(N) Yang-Mills theory, working in the limit of vanishing external three-momentum. The result is subsequently applied to the evaluation of the…

高能物理 - 唯象学 · 物理学 2015-06-12 Yan Zhu , Aleksi Vuorinen

In this PhD thesis, I will review recent progress in perturbative studies of energy momentum tensor correlators in high-temperature Yang-Mills theory. After briefly introducing the necessary tools and physical motivation, I proceed to…

高能物理 - 唯象学 · 物理学 2013-07-26 Yan Zhu

In the perturbative QCD with $N_c\to\infty$ the amplitude for the collision of two heavy nuclei is expressed via dipole densities in the nuclei. Coupled equations for these densities are derived in the configuration space. The equations are…

高能物理 - 唯象学 · 物理学 2007-05-23 M. A. Braun

The semi-phenomenological improved holographic model for QCD is confronted with data of the pure glue, large-Nc gauge theory. After fitting two phenomenological parameters in the potential, the model can reproduce in detail all…

高能物理 - 理论 · 物理学 2010-05-07 U. Gursoy , E. Kiritsis , L. Mazzanti , F. Nitti

The parallel roles of modular symmetry in ${\cal N}=2$ supersymmetric Yang-Mills and in the quantum Hall effect are reviewed. In supersymmetric Yang-Mills theories modular symmetry emerges as a version of Dirac's electric -- magnetic…

高能物理 - 理论 · 物理学 2008-12-19 Brian P. Dolan

In this paper, we compute the exact form of the bulk geometry emerging from a $(1+1)$-dimensional conformal field theory using the holographic principle. We first consider the $(2+1)$-dimensional asymptotic $AdS$ metric in Poincare…

高能物理 - 理论 · 物理学 2020-02-03 Ashis Saha , Sourav Karar , Sunandan Gangopadhyay

We compute the shear viscosity of weakly coupled N=4 supersymmetric Yang-Mills (SYM) theory. Our result for [eta/s], the viscosity to entropy-density ratio, is many times smaller than the corresponding weak-coupling result in QCD. This…

高能物理 - 唯象学 · 物理学 2008-11-26 Simon C. Huot , Sangyong Jeon , Guy D. Moore

This is an introduction to conformal invariance and two-dimensional critical phenomena for graduate students and condensed-matter physicists. After explaining the algebraic foundations of conformal invariance, numerical methods and their…

凝聚态物理 · 物理学 2009-10-22 Philippe Christe , Malte Henkel

We calculate the exact values of the holomorphic observables of {\cal N}=4 supersymmetric SU(N) Yang-Mills theory deformed by mass terms which preserve {\cal N}=1 SUSY. These include the chiral condensates in each massive vacuum of the…

高能物理 - 理论 · 物理学 2011-04-15 Nick Dorey , S. Prem Kumar