\documentclass{article}
\usepackage{Vaucanson-g}

\begin{document}
\LargeState

\begin{VCPicture}{(0,-2)(6,2)}
    \State[1]{(0,0)}{one}
    \State[2]{(3,0)}{two}
    \State[3]{(6,0)}{three}
    \ArcL[0.5]{one}{two}{1.0}
    \ArcL[0.5]{two}{three}{0.5}
    \LArcL[0.5]{two}{one}{0.5}
    \VArcR[0.5]{arcangle=-45}{three}{one}{1.0}
\end{VCPicture}

\end{document}