reviewing Hugh changes

Manuscript/EPAWTFT.tex

@@ -1405,7 +1405,7 @@ This swapping process can also be represented as a double excitation, and thus a
 for $\lambda \geq 1$ (Fig.~\ref{subfig:ump_cp}).
 While this appears to be an avoided crossing between the ground and first-excited state, 
 the presence of an earlier excited-state avoided crossing means that the first-excited state qualitatively 
-represents the reference double excitation for $\lambda > 0.5.$
+represents the reference double excitation for $\lambda > 1/2$ (see Fig.~\ref{subfig:ump_cp}).
 
 % SHARPNESS AND QPT
 The ``sharpness'' of the avoided crossing is controlled by the correlation strength $U/t$.