Holographic nuclear physics

Oren Bergman, Matthew Lippert, Gilad Lifschytz

Research output: Contribution to journalArticlepeer-review


We analyze the phases of the Sakai-Sugimoto model at finite temperature and baryon chemical potential. Baryonic matter is represented either by 4-branes in the 8-branes or by strings stretched from the 8-branes to the horizon. We find the explicit configurations and use them to determine the phase diagram and equation of state of the model. The 4-brane configuration (nuclear matter) is always preferred to the string configuration (quark matter), and the latter is also unstable to density fluctuations. In the deconfined phase the phase diagram has three regions corresponding to the vacuum, quark-gluon plasma, and nuclear matter, with a first-order and a second-order phase transition separating the phases. We find that for a large baryon number density, and at low temperatures, the dominant phase has broken chiral symmetry. This is in qualitative agreement with studies of QCD at high density.

Original languageEnglish
Article number056
JournalJournal of High Energy Physics
Issue number11
StatePublished - 1 Nov 2007


  • Gauge-gravity correspondence
  • QCD

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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