Probing the Aoki phase with N_f=2 Wilson fermions at finite temperature

Details Probing the Aoki phase with N_f=2 Wilson fermions at finite temperature Probing the Aoki phase with N_f=2 Wilson fermions at finite temperature

2005-11-28

arxiv.org/abs/hep-lat/0511059v1

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 4 figures

Scientific paper

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.

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