Deokhyun Yi

Asia Pacific Center for Theoretical Physics, Urusan, Ulsan, South Korea

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Publications (3)9.12 Total impact

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    ABSTRACT: As a part of the attempt to address dense baryonic matter, we first review holographic approaches to QCD. The big advantage of the holographic approaches is that they render strongly coupled 4D gauge theories as duals of certain weakly coupled string/supergravity that are well understood. Its relevance to real QCD is one of the central problems in hadron/nuclear physics as well as in the context of applied string theory. None of the models based on these holographic approaches presently available can adequately describe the system we are interested in, namely dense baryonic matter. Nevertheless, some aspects of the holographic approach are found to describe certain processes both in vacuum and in medium. In this talk we only present the structure of a model that appears to be closest to QCD, and has the potential to address the problem.
    02/2012;
  • Source
    Youngman Kim, Deokhyun Yi, Piljin Yi
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    ABSTRACT: We calculate the low energy constants of four-nucleon interactions in an effective chiral Lagrangian in holographic QCD. We start with a D4-D8 model to obtain meson-nucleon interactions and then integrate out massive mesons to obtain the four-nucleon interactions in 4D. We end up with two low energy constants at the leading order and seven of them at the next leading order, which is consistent with the effective chiral Lagrangian. The values of the low energy constants are evaluated with the first five Kaluza-Klein resonances.
    Journal of High Energy Physics 11/2011; 2012(1). · 5.62 Impact Factor
  • Source
    Youngman Kim, Deokhyun Yi
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    ABSTRACT: The purpose of this review is to provide basic ingredients of holographic QCD to non-experts in string theory and to summarize its interesting achievements in nuclear and hadron physics. We focus on results from a less stringy bottom-up approach and review a stringy top-down model with some calculational details.
    Advances in High Energy Physics 07/2011; · 3.50 Impact Factor

Publication Stats

6 Citations
9.12 Total Impact Points

Institutions

  • 2011
    • Asia Pacific Center for Theoretical Physics
      Urusan, Ulsan, South Korea
    • Pohang University of Science and Technology
      • Department of Physics
      Antō, North Gyeongsang, South Korea