# XQCD 2019 (The 17th International Conference on QCD in Extreme Conditions)

24-26 June 2019
Bunkyo School Building, Tokyo Campus, University of Tsukuba
Japan timezone

## First study of $N_f=2+1+1$ lattice QCD with physical domain-wall quarks at finite temperatures (Cancelled)

26 Jun 2019, 11:05
25m
134 (Bunkyo School Building, Tokyo Campus, University of Tsukuba)

### 134

#### Bunkyo School Building, Tokyo Campus, University of Tsukuba

3-29-1 Otsuka Bunkyo-ku Tokyo 112-0012 Japan
Oral talk

### Speaker

Prof. Ting-Wai Chiu (National Taiwan University)

### Description

Using a GPU cluster consisting of 25 units of Nvidia DGX-1 (each unit having 8*V100 interconnected by the NVLink), TWQCD collaboration has generated the first gauge ensembles of $N_f=2+1+1$ lattice QCD with physical domain-wall quarks on the $L_x^3 \times L_t = 64^3 \times (6,8,10,12,16)$ lattices, in the temperature range $T \simeq 200 - 550$ MeV. The lattice spacing $a \sim 0.064$~fm ($La > 4$ fm, and $M_\pi La > 3$) and the physical bare quark masses ($m_{u/d} a = 0.00125$, $m_s a = 0.04$, $m_c a = 0.55$) are determined with the zero temperature gauge ensemble resulting from the simulation of $N_f=2+1+1$ QCD on the $64^4$ lattice. In this talk, I will outline the HMC simulation and the generation of the gauge ensembles. Moreover, I will present the first physical results (e.g., topological susceptibility) extracting from these $N_f = 2+1+1$ gauge ensembles with physical domain-wall quarks at finite temperatures.

### Primary author

Prof. Ting-Wai Chiu (National Taiwan University)

### Presentation Materials

There are no materials yet.