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)
