Holographic QCD: Past, present, and future

Kim, Youngman; Shin, Ik Jae; Tsukioka, Takuya

doi:10.1016/j.ppnp.2012.09.002

Cited by 69 publications

(67 citation statements)

References 215 publications

(263 reference statements)

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“…and in bottom-up approaches (see [43][44][45][46][47] for reviews). For QCD phase transitions, most of the bottom-up studies focus only on confinement/deconfinement phase transition.…”

Section: Jhep04(2016)036mentioning

confidence: 99%

Chiral phase transition in the soft-wall model of AdS/QCD

Chelabi

Fang

Huang

et al. 2016

J. High Energ. Phys.

104

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Abstract:We investigate the chiral phase transition in the soft-wall model of AdS/QCD at zero chemical potential for two-flavor and three-flavor cases, respectively. We show that there is no spontaneous chiral symmetry breaking in the original soft-wall model. After detailed analysis, we find that in order to realize chiral symmetry breaking and restoration, both profiles for the scalar potential and the dilaton field are essential. The scalar potential determines the possible solution structure of the chiral condensate, except the mass term, it takes another quartic term for the two-flavor case, and for the three-flavor case, one has to take into account an extra cubic term due to the t'Hooft determinant interaction. The profile of the dilaton field reflects the gluodynamics, which is negative at a certain ultraviolet scale and approaches positive quadratic behavior at far infrared region. With this set-up, the spontaneous chiral symmetry breaking in the vacuum and its restoration at finite temperature can be realized perfectly. In the two-flavor case, it gives a second order chiral phase transition in the chiral limit, while the transition turns to be a crossover for any finite quark mass. In the case of three-flavor, the phase transition becomes a first order one in the chiral limit, while above sufficient large quark mass it turns to be a crossover again. This scenario agrees exactly with the current understanding on chiral phase transition from lattice QCD and other effective model studies.

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“…and in bottom-up approaches (see [43][44][45][46][47] for reviews). For QCD phase transitions, most of the bottom-up studies focus only on confinement/deconfinement phase transition.…”

Section: Jhep04(2016)036mentioning

confidence: 99%

Chiral phase transition in the soft-wall model of AdS/QCD

Chelabi

Fang

Huang

et al. 2016

J. High Energ. Phys.

104

View full text Add to dashboard Cite

show abstract

“…[53][54][55][56][57] for reviews). Different from top-down approach, bottom-up holographic QCD starts from QCD phenomena and try to build up more realistic holographic models.…”

Section: Introductionmentioning

confidence: 99%

Chiral phase transition of QCD with N f = 2 + 1 flavors from holography

Huang

2017

J. High Energ. Phys.

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Chiral phase transition for three-flavor N f = 2 + 1 QCD with m u = m d = m s is investigated in a modified soft-wall holographic QCD model. Solving temperature dependent chiral condensates from equations of motion of the modified soft-wall model, we extract the quark mass dependence of the order of chiral phase transition in the case of N f = 2 + 1, and the result is in agreement with the "Columbia Plot", which is summarized from lattice simulations and other non-perturbative methods. First order phase transition is observed around the three flavor chiral limit m u/d = 0, m s = 0, while at sufficient large quark masses it turns to be a crossover phase transition. The first order and crossover regions are separated by a second order phase transition line. The second order line is divided into two parts by the m u/d = m s line, and the m s dependence of the transition temperature in these two parts are totally contrast, which might indicate that the two parts are governed by different universality classes.

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“…Many other interesting works have been done in nuclear physics using AdS/QCD formalism (see Refs. [93,94,95,96] for detailed reviews).…”

Section: Introductionmentioning

confidence: 99%

Deuteron transverse densities in holographic QCD

2017

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Abstract. We investigate the transverse charge density in the longitudinally as well as transversely polarized deuteron using the recent empirical description of the deuteron electromagnetic form factors in the framework of holographic QCD. The predictions of the holographic QCD are compared with the results of a standard phenomenological parameterization. In addition, we evaluate GPDs and the gravitational form factors for the deuteron. The longitudinal momentum densities are also investigated in the transverse plane. PACS

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Holographic QCD: Past, present, and future

Cited by 69 publications

References 215 publications

Chiral phase transition in the soft-wall model of AdS/QCD

Chiral phase transition in the soft-wall model of AdS/QCD

Chiral phase transition of QCD with N f = 2 + 1 flavors from holography

Deuteron transverse densities in holographic QCD

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