Probing the Aoki phase with N_f=2 Wilson fermions at finite temperature
  In this letter we report on a numerical investigation of the Aoki phase in the case of finite temperature which continues our former study at zero temperature. We have performed simulations with Wilson fermions at $\beta=4.6$ using lattices with temporal extension $N_{\tau}=4$. In contrast to the zero temperature case, the existence of an Aoki phase can be confirmed for a small range in $\kappa$ at $\beta=4.6$, however, shifted slightly to lower $\kappa$. Despite fine-tuning $\kappa$ we could not separate the thermal transition line from the Aoki phase. 
E.-M. Ilgenfritz, W. Kerler, M. M\"uller-Preussker, A. Sternbeck, H.   St\"uben