Thermodynamics of AdS/QCD

Kajantie, K.; Tahkokallio, T.; Yee, Jung-Tay

doi:10.1088/1126-6708/2007/01/019

Cited by 82 publications

(111 citation statements)

References 61 publications

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“…Properties of QCD at high temperature and density and the deconfinement transition have been analyzed in this context in [241][242][243][244][245][246][247].…”

Section: A Plethora Of Ads/qcd Phenomenologymentioning

confidence: 99%

Mesons in gauge/gravity duals

et al. 2008

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Abstract. We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our main focus is on the "top-down approach" of considering models constructed within string theory. We explain the stringtheoretical constructions in detail, aiming at non-specialists. These give rise to a new way of describing strongly coupled confining large-N gauge theories similar to large-N QCD. In particular, we consider gravity dual descriptions of spontaneous chiral symmetry breaking, and compare with lattice results. A further topic covered is the behaviour of flavour bound states in finite-temperature field theories dual to a gravity background involving a black hole. We also describe the "bottom up" phenomenological approach to mesons within AdS/QCD. Some previously unpublished results are also included.PACS. 11.15.-q Gauge field theories -11.25.Tq Gauge/string duality -12.40.Yx Hadron mass models and calculations -14.40.-n Mesons

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“…Properties of QCD at high temperature and density and the deconfinement transition have been analyzed in this context in [241][242][243][244][245][246][247].…”

Section: A Plethora Of Ads/qcd Phenomenologymentioning

confidence: 99%

Mesons in gauge/gravity duals

et al. 2008

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“…We have analyzed the dependence on ρ of thermodynamic quantities such as the entropy, energy and free energy density and of the jet quenching parameter and drag coefficient for a probe parton moving in the dual plasma. While in the "SQCD dual" q; a difference of [18] w.r.t. our 10d case is that we have total screening while, in the former paper, the screening only happens above a certain energy.…”

Section: Concluding Commentsmentioning

confidence: 99%

Holography and unquenched quark-gluon plasmas

et al. 2007

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We employ the string/gauge theory correspondence to study properties of strongly coupled quark-gluon plasmas in thermal gauge theories with a large number of colors and flavors. In particular, we analyze non-critical string duals of conformal (S)QCD, as well as ten dimensional wrapped fivebrane duals of SQCD-like theories. We study general properties of the dual plasmas, including the drag force exerted on a probe quark and the jet quenching parameter. We find that these plasma observables depend on the number of colors and flavors in the "QCD dual"; in particular, we find that the jet quenching parameter increases linearly with N f /N c at leading order in the probe limit. In the ten dimensional case we find a non trivial drag coefficient but a vanishing jet quenching parameter. We comment on the relation of this result with total screening and argue that the same features are shared by all known plasmas dual to fivebranes in ten dimensions. We also construct new D5 black hole solutions with spherical horizon and show that they exhibit the same features.

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“…The opposite is true for G e αα , as is obvious from the relative factor of i. The correlators of components, pointing along the isospin potential in flavor space (a = 3), are found to be 20) with the diffusion constant D 0 = 1/(2πT ) . Note that these latter correlators have the same structure but differ by a factor 4/N c from those found in the Abelian super-Maxwell case [2] (see also (C1) and (C2)).…”

Section: Green Functions: Resultsmentioning

confidence: 90%

“…This transition was shown to be of first order in [16] (see [14] for a similar transition in the D4/D6 system), and studied in further detail in [17,18]. Related phase transitions appear in [19,20,21]. Mesons in gravity duals of finite temperature field theories have been studied in [22,23,24,25].…”

Section: Introductionmentioning

confidence: 91%

Isospin diffusion in thermal AdS/CFT correspondence with flavor

2007

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We study the gauge/gravity dual of a finite temperature field theory at finite isospin chemical potential by considering a probe of two coincident D7-branes embedded in the AdSSchwarzschild black hole background. The isospin chemical potential is obtained by giving a vev to the time component of the non-Abelian gauge field on the brane. The fluctuations of the non-Abelian gauge field on the brane are dual to the SU (2) flavor current in the field theory. For the embedding corresponding to vanishing quark mass, we calculate all Green functions corresponding to the components of the flavor current correlator. We discuss the physical properties of these Green functions, which go beyond linear response theory. In particular, we show that the isospin chemical potential leads to a frequency-dependent isospin diffusion coefficient.

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Thermodynamics of AdS/QCD

Cited by 82 publications

References 61 publications

Mesons in gauge/gravity duals

Mesons in gauge/gravity duals

Holography and unquenched quark-gluon plasmas

Isospin diffusion in thermal AdS/CFT correspondence with flavor

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