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

Autor:	Namekawa, Yusuke, Asano, Yuhma, Ito, Yuta, Kaneko, Takashi, Matsufuru, Hideo, Nishimura, Jun, Tsuchiya, Asato, Tsutsui, Shoichiro, Yokota, Takeru
Rok vydání:	2021
Předmět:	High Energy Physics - Lattice High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	We discuss the flavor number dependence of QCD at low temperature and high density by the complex Langevin method. In our previous work, the complex Langevin method is confirmed to satisfy the criterion for correct convergence in certain regions, such as $\mu_{\rm q} / T = 5.2-7.2$ on $8^3 \times 16$ and $\mu_{\rm q} / T = 1.6-9.6$ on $16^3 \times 32$ using $N_{\rm f} = 4$ staggered fermion at $\beta = 5.7$. We extend this study to more realistic flavor cases, $N_{\rm f} = 2, 2 + 1, 3$, using Wilson fermions. We present the flavor number dependence of the validity regions of the complex Langevin method and the quark number. Comment: 9 pages, 5 figures, presented at the 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2112.00150 Zobrazit plný text záznamu View this record from Arxiv