2017/10/18 by Takahiro Doi, Takahiro M. Doi, Kouji Kashiwa · 3 citations
Physics and Astronomy · #Bottom quark #Deconfinement #Down quark #Holonomy #Lattice QCD #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Top quark #Up quark #hep-lat
paper · pdf · doi:10.1051/epjconf/201817512003
published in EPJ Web of Conferences 175, 12003 (EDP Sciences) · 8 pages, 4 figures, Proceedings for the 35th International Symposium on Lattice Field Theory (Lattice 2017)
arxiv created 2017/10/18 · openalex created_date 2017/11/10 · openalex publication_date 2018/01/01 · arxiv updated 2018/04/18 · openalex updated_date 2026/08/05
The quark number density at finite imaginary chemical potential is investigated in the lattice QCD using the Dirac-mode expansion. We find the analytical formula of the quark number density in terms of the Polyakov loop in the large quark mass regime. On the other hand, in the small quark mass region, the quark number density is investigated by using the quenched lattice QCD simulation. The quark number density is found to strongly depend on the low-lying Dirac modes while its sign does not change. This result leads to that the quark number holonomy is not sensitive to the low-lying Dirac modes. We discuss the confinement-deconfinement transition from the property of the quark number density and the quark number holonomy.