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We calculated the vector susceptibilitiy in holographic QCD models to study QCD chiral/deconfinemnt phase transition. We found that the vector susceptibility obtained in this work agrees with the… (More)

- Youngman Kim, B. Lee, Chanyong Park, S. K. Sin
- 2007

We consider gluon condensation (GC) at finite temperature using AdS/CFT. We first show that in the presence of regular horizon, GC is forbiden in high temperature. Then we consider gravity back… (More)

Encouraged by recent developments in AdS/QCD models for light quark system, we study heavy quarkonium in the framework of the AdS/QCD models. We calculate the masses of cc̄ vector meson states using… (More)

We study the physics with finite nuclear density in the framework of AdS/QCD with holographic baryon field included. Based on a mean field type approach, we introduce the nucleon density as a… (More)

- Youngman Kim, Sangmin Lee, Piljin Yi
- 2009

We compute the potential between a pair of nucleons in the D4-D8 holographic QCD. In the large ’t Hooft coupling limit, λ ≫ 1, the hadronic size of the baryon is small ∼ 1/ √ λMKK , and their… (More)

The question as to what the relevant degrees of freedom are at the thermal chiral phase transition is addressed in terms of the “vector manifestation (VM)” of chiral symmetry à la Harada and… (More)

- Youngman Kim, Yumi Ko, S. K. Sin
- 2009

We study the density driven symmetry breaking in holographi c superconductors by considering positive mass squared case. We show that with small values of positivem, scalar condensation still forms.… (More)

- Sang Wan Ryu, Kyungchun Lee, Seungwhan Ma, Youngman Kim
- Journal of nanoscience and nanotechnology
- 2007

The development of stress in metallic thin films, monitored by in-situ curvature measurements during deposition, is analyzed. Three distinct stress regions including initial compressive, broad… (More)

We study the effects of Lorentz non-invariance on the physical pion velocity at the critical temperature Tc in an effective theory of hidden local symmetry (HLS) with the “vector manifestation” fixed… (More)

- Sang Wan Ryu, Woonam Juhng, Youngman Kim
- Journal of nanoscience and nanotechnology
- 2010

Thin film type materials are widely used in modern industries, such as semiconductor devices, functional superconductors, machining tools, and so on. The thermal properties of material in… (More)