Holographic QCD with topologically charged domain-wall/membranes

Feng Li Lin, Shang Yu Wu

研究成果: 雜誌貢獻文章

3 引文 斯高帕斯(Scopus)

摘要

We study the thermodynamical phase structures of holographic QCD with nontrivial topologically charged domain-wall/membranes which are originally related to the multiple θ-vacua in the large N c limit. We realize the topologically charged membranes as the holographic D6-brane fluxes in the Sakai-Sugimoto model. The D6-brane fluxes couple to the probe D8-D8̄ via Chern-Simon term, and act as the source for the baryonic current density of QCD. We find rich phase structures of the dual meson system by varying asymptotic separation of D8 and D8̄. Especially, there can be a thermodynamically favored and stable phase of finite baryonic current density. This provides the supporting evidence for the discovery of the topologically charged membranes found in the lattice QCD calculations. We also find a crossover phase with the limiting baryonic current density and temperature which suggest a Hagedorn-like phase transition of meson dissociation.

原文英語
文章編號046
期刊Journal of High Energy Physics
2008
發行號9
DOIs
出版狀態已發佈 - 2008 九月 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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