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

Topological susceptibility of two-color QCD at low temperature and high density

24 Jun 2019, 17:00
2h
122 (Bunkyo School Building, Tokyo Campus, University of Tsukuba)

122

Bunkyo School Building, Tokyo Campus, University of Tsukuba

3-29-1 Otsuka Bunkyo-ku Tokyo 112-0012 Japan
Board: 11
Poster

Speaker

Dr Etsuko Itou (Keio University)

Description

We study the chemical potential $(\mu)$ dependence of the topological susceptibility with two-color two-flavor QCD. We find that at temperature $T \sim T_c/2$, where Tc denotes the critical temperature at zero chemical potential, the topological susceptibility is almost constant until $\mu/m_{PS}=1.6$, while at $T \sim T_c$, it decreases significantly from the $\mu=0$ value in a high $\mu$ regime. In this work, we perform the simulation for $\mu/T \le 16$, which covers even the low temperature and the high chemical potential regime. In this regime, we introduce a diquark source term, which is characterized by $j$, into the action. We also show our results for the phase diagram in a low temperature regime $(T \sim T_c/2)$, which is obtained after taking the $j \to 0$ limit of physical observable.

Primary author

Dr Etsuko Itou (Keio University)

Presentation Materials

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