Heavy-quark potentials and AdS/QCD

Andreev, Oleg; Захаров, В. И.

doi:10.1103/physrevd.74.025023

Cited by 333 publications

(533 citation statements)

References 32 publications

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“…Before proceeding to the detailed analysis, let us set the five-dimensional geometry. We consider the following deformation of the Euclidean AdS 5 [14,2] …”

Section: General Formalismmentioning

confidence: 99%

“…First, we examine the multi-quark potentials that may also be thought of as a further cross-check of the model [2]. Second, we make a similar analysis of the multi-quark pseudo-potentials.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper we continue a series of studies [2,3,4] devoted to the heavy quark potentials and pseudo-potentials within a five-dimensional framework nowadays known as AdS/QCD. In [2], the model was presented for computing the quark-antiquark potential.…”

Section: Introductionmentioning

confidence: 99%

“…The multi-quark potentials have recently been the object of numerical studies. 2 In the case of great interest, three quark states in a SU (3) gauge theory, the potential is well described by a simple model [8] …”

Section: Introductionmentioning

confidence: 99%

“…In [2], the model was presented for computing the quark-antiquark potential. The resulting potential is Coulomb-like at short distances and linear at long range.…”

Section: Introductionmentioning

confidence: 99%

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Some multiquark potentials, pseudopotentials, and AdS/QCD

Andreev

2008

Phys. Rev. D

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“…Before proceeding to the detailed analysis, let us set the five-dimensional geometry. We consider the following deformation of the Euclidean AdS 5 [14,2] …”

Section: General Formalismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In [2], the model was presented for computing the quark-antiquark potential. The resulting potential is Coulomb-like at short distances and linear at long range.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Some multiquark potentials, pseudopotentials, and AdS/QCD

Andreev

2008

Phys. Rev. D

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Quantum field theories coupled to supergravity

Große

2008

Fortschritte der Physik

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This article is devoted to the investigation of the interplay of supersymmetric Yang–Mills theories (SYM) and supergravity (SUGRA). The topic is studied from two points of view: Firstly from the point of view of AdS/CFT correspondence, which realises the coupling of four dimensional superconformal 𝒩 = 4 SYM theory and ten dimensional type IIB SUGRA in a holographic way. In order to arrive at theories that resemble quantum chromodynamics (QCD) more closely, fundamental fields are introduced using probe D7‐branes and non‐trivial background configuration are considered. In particular supergravity solutions that are only asymptotically anti‐de Sitter and break supersymmetry are used. This allows the description of spontaneous chiral symmetry breaking. The meson spectrum is calculated and the existence of an associated Goldstone mode is demonstrated. Moreover it is shown that highly radially excited mesons are not degenerate. Additionally instanton configurations on the D7‐branes are investigated, which lead to a holographic description of the dual field theory's Higgs branch. Finally a holographic description of heavy‐light mesons is developed, which are mesons consisting of quarks with a large mass difference, such that a treatment of B mesons can be achieved The second approach is the technique of so‐called space‐time dependent couplings (also known as “local couplings”), where coupling constants are promoted to external sources. This allows to explore the conformal anomaly of quantum field theories coupled to a classical gravity background. The technique is extended to the superfield description of 𝒩 = 1 supergravity, a complete basis for the anomaly is given and the consistency conditions that arise from a cohomological treatment are calculated. Possible implications for an extension of Zamolodchikov's c‐theorem to four dimensional supersymmetric quantum field theories are discussed.

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Holographic Complexity of Braneworld in Horndeski Gravity

Santos

Sokoliuk

Baransky

2023

Fortschritte der Physik

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This work investigates the influence of a probe string on a complexity of braneworld according to the CA (Complexity equals action) conjecture within the Horndeski gravity. In the current study, it is considered that scalar fields that source Horndeski gravity have a spatial dependence. In addition, our system contains a particle moving on the boundary, which corresponds to the insertion of a fundamental string in the higher dimensional bulk. Such an effect is given by the Nambu-Goto term, that also incorporates the time-dependence and evolution in our system. Both warp factor, scalar field and superpotential values are derived numerically assuming appropriate initial conditions and the growth rate of holographic complexity is analysed within the so-called Wheeler-De Witt (WDW) patch with null-like hypersurfaces present.

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Heavy-quark potentials and AdS/QCD

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

Cited by 333 publications

References 32 publications

Some multiquark potentials, pseudopotentials, and AdS/QCD

Some multiquark potentials, pseudopotentials, and AdS/QCD

Quantum field theories coupled to supergravity

Holographic Complexity of Braneworld in Horndeski Gravity

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