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Pierre-Francois Loos 2020-11-26 12:07:37 +01:00
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Manuscript/EPAWTFT.tex
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@ -1253,11 +1253,12 @@ However, they are unable to model functions with square-root branch points, whic
Figure \ref{fig:PadeRMP} illustrates the improvement brought by diagonal (\ie, $d_A = d_B$) Pad\'e approximants as compared to the usual Taylor expansion in the case of the RMP series of the Hubbard dimer for $U/t = 4.5$.
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\begin{figure}
\includegraphics[width=\linewidth]{PadeRMP}
\begin{figure*}
\includegraphics[height=0.23\textheight]{PadeRMP35}
\includegraphics[height=0.23\textheight]{PadeRMP45}
\caption{\label{fig:PadeRMP}
RMP ground-state energy as a function of $\lambda$ obtained using various resummation techniques at $U/t = 4.5$.}
\end{figure}
RMP ground-state energy as a function of $\lambda$ obtained using various resummation techniques at $U/t = 3.5$ (left) and $U/t = 4.5$ (right).}
\end{figure*}
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%==========================================%

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