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@ -1669,7 +1669,10 @@ can significantly improve the estimate of the energy using low-order perturbatio
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as shown in Table~\ref{tab:RMP_shank}.
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as shown in Table~\ref{tab:RMP_shank}.
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Even though the RMP series diverges at $U/t = 4.5$, the combination
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Even though the RMP series diverges at $U/t = 4.5$, the combination
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of diagonal Pad\'e approximants with the Shanks transformation reduces the absolute error of
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of diagonal Pad\'e approximants with the Shanks transformation reduces the absolute error of
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the best energy estimate to 0.002\,\%.}
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the best energy estimate to 0.002\,\% using only the lowest 10 terms in the corresponding
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Taylor series.}
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This remarkable result indicates just how much information is contained in the first few
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terms of a perturbation series, even if it diverges.
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\begin{table}[th]
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\begin{table}[th]
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\caption{
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\caption{
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