The 38th International Symposium on Lattice Field Theory

Flavor number dependence of QCD at finite density by the complex Langevin method

28 Jul 2021, 21:15

15m

Oral presentation QCD at nonzero Temperature and Density QCD at nonzero Temperature and Density

Speaker

Yusuke Namekawa (Kyoto University)

Description

We discuss the flavor number dependence of QCD at finite density by using the complex Langevin method. In our previous works, the complex Langevin method is confirmed to satisfy the criterion for correct convergence in some regions, such as $\mu / T = 5.2-7.2$ on $8^3 \times 16$ and $\mu / T = 1.6-9.6$ on $16^3 \times 32$ using $N_f = 4$ staggered quarks at $\beta = 5.7$. We extend this study to more realistic flavor cases, $N_f = 2, 2 + 1, 3$, using Wilson quarks. $N_f$ dependence of physical observables as well as validity regions of the complex Langevin method is presented.

Presentation materials

150 W4Th Yusuke Namekawa

lattice2021-namekawa.pdf