Journal of the Korean Physical Society

, Volume 66, Issue 4, pp 578–584 | Cite as

Explicit flavor symmetry breaking and holographic compact stars

  • Youngman Kim
  • Ik Jae Shin
  • Chang-Hwan Lee
  • Mew-Bing Wan
Article
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Abstract

We study the effects of flavor symmetry breaking on holographic dense matter and compact stars in the D4/D6 model. To this end, two light flavors and one intermediate mass flavor are considered. For two light quarks, we investigate how the strong isospin violation affects the properties of holographic dense matter and compact stars. We observe that quark-antiquark condensates are flavor dependent and show interesting behavior near the transition from dense matter with only one flavor to matter with two flavors. An intermediate mass quark is introduced to investigate the role of the third flavor. The mass-radius relations of holographic compact stars with three flavors show that the mass-radius curve changes drastically at a transition density from which the third flavor begins to appear in the matter.

Keywords

Gauge/gravity duality Dense matter Strong isospin violation Compact stars 
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Copyright information

© The Korean Physical Society 2015

Authors and Affiliations

  • Youngman Kim
    • 1
  • Ik Jae Shin
    • 1
  • Chang-Hwan Lee
    • 2
    • 4
  • Mew-Bing Wan
    • 3
  1. 1.Rare Isotope Science ProjectInstitute for Basic ScienceDaejeonKorea
  2. 2.Department of PhysicsPusan National UniversityBusanKorea
  3. 3.Asia-Pacific Center for Theoretical PhysicsPohangKorea
  4. 4.Department of Physics and AstronomyState University of New YorkStony BrookUSA

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