1. Lee-Yang zeros in lattice QCD for searching phase transition points
- Author
-
H. Iida, V. G. Bornyakov, Alexander Molochkov, Atsushi Nakamura, D. L. Boyda, M. Wakayama, V.I. Zakharov, and Vladimir Alexandrovich Goy
- Subjects
Quark ,Physics ,Nuclear and High Energy Physics ,Phase transition ,010308 nuclear & particles physics ,Infinite volume ,High Energy Physics - Lattice (hep-lat) ,Value (computer science) ,FOS: Physical sciences ,Lattice QCD ,01 natural sciences ,Computer Science::Digital Libraries ,lcsh:QC1-999 ,High Energy Physics - Lattice ,0103 physical sciences ,Limit (mathematics) ,010306 general physics ,lcsh:Physics ,Sign (mathematics) ,Mathematical physics - Abstract
We report Lee-Yang zeros behavior at finite temperature and density. The quark number densities, , are calculated at the pure imaginary chemical potential, where no sign problem occurs. Then, the canonical partition functions, Z_C(n,T,V), up to some maximal values of n are estimated through fitting theoretically motivated functions to , which are used to compute the Lee-Yang zeros. We study the temperature dependence of the distributions of the Lee-Yang zeros around the pseudo-critical temperature region T/T_c = 0.84 - 1.35. In the distributions of the Lee-Yang zeros, we observe the Roberge-Weiss phase transition at T/T_c >= 1.20. We discuss the dependence of the behaviors of Lee-Yang zeros on the maximal value of n, so that we can estimate a reliable infinite volume limit., Comment: 8 pages, 8 figures and 2 tables
- Published
- 2019