2006/02/28 by Xu-Guang Huang, Xuguang Huang, Xuewen Hao +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Chromodynamics and Particle Interactions #astro-ph #gr-qc #hep-ph
paper · pdf · doi:10.1016/j.astropartphys.2007.09.002
published as Astropart.Phys.28:472-480,2007 · 8 pages, 8 figures, published version
openalex publication_date 2007/09/26 · arxiv created 2007/11/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The gravitational effect on the chiral phase structure at finite temperature and density is investigated in the framework of Nambu--Jona-Lasinio model in D-dimensional ultrastatic Einstein universe. In mean field approximation, the thermodynamic potential and the gap equation determining the curvature, temperature and density dependence of the chiral condensate are analytically derived. In the sense of chiral symmetry restoration and the order of the phase transition, the scalar curvature of the space-time plays similar role as the temperature.