Speaker
Dr
Shoichiro Tsutsui
(RIKEN)
Description
We explore the QCD phase diagram at finite density with four-flavor staggered fermions using the complex Langevin method (CLM), which is a promising approach to overcome the sign problem. In our previous work [arXiv:1811.12688] on an $8^3 \times 16$ lattice at $\beta=5.7$ with the quark mass $m=0.01$, we have found that the baryon number density has a clear plateau as a function of the chemical potential suggesting the formation of nuclear matter in a small box. Here we use a $16^3 \times 32$ lattice to reduce finite volume effects and find that the plateau structure survives. Moreover, the number of quarks in the plateau region turns out to be 24, which is exactly the same as the one obtained previously on the $8^3 \times 16$ lattice.
Authors
Dr
Shoichiro Tsutsui
(RIKEN)
Dr
Yuta Ito
Hideo Matsufuru
(High Energy Accelerator Research Organization (KEK))
Jun Nishimura
(High Energy Accelerator Research Organization (KEK))
Dr
Shinji Shimasaki
Prof.
Asato Tsuchiya
(Shizuoka University)
