Chiral limit of 2-color QCD at strong couplings

Shailesh Chandrasekharan, Fu Jiun Jiang

研究成果: 雜誌貢獻會議論文同行評審


We study two-color lattice QCD with massless staggered fermions in the strong coupling limit using a new and efficient cluster algorithm. We focus on the phase diagram of the model as a function of temperature T and baryon chemical potential mby working on Lt × Ld lattices in both d = 2, 3. In d = 3 we find that at m = 0 the ground state of the system breaks the global U(2) symmetry present in the model to U(1), while the finite temperature phase transition (with Lt = 4) which restores the symmetry is a weak first order transition. In d = 2 we find evidence for a novel phase transition similar to the Berezinky-Kosterlitz-Thouless phenomena. On the other hand the quantum (T = 0) phase transition to a symmetric phase as a function of mis second order in both d = 2, 3 and belongs to the mean field universality class.

期刊Proceedings of Science
出版狀態已發佈 - 2005
事件23rd International Symposium on Lattice Field Theory, LAT 2005 - Dublin, 愛爾蘭
持續時間: 2005 7月 252005 7月 30

ASJC Scopus subject areas

  • 多學科


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