Move letter over arrow (xrightarrow) slightly down

[Sebastian Schubert]

Hi,

I use xrightarrow, to put a letter over an arrow. This combination is
supposed to be used as an index, so I like it to be as compact as possible.
For my taste, the distance between that arrow and the letter is too large in
this case (especially with the Minion I use).

What can I do to reduce that distance (or how can I use a different
approach)?

documentclass{article}

\usepackage{amsmath}
\newcommand{\vft}[3]{\ensuremath{\Psi_{#1\xrightarrow{#2} #3}}}
%\newcommand{\vft}[3]{\ensuremath{\Psi_{#1\stackrel{#2}{\rightarrow} #3}}}


\begin{document}
\begin{equation}
\vft{j}{o}{i}
\end{equation}
\end{document}

Cheers
Sebastian

[Sebastian Schubert]

Post by Sebastian Schubert
I use xrightarrow, to put a letter over an arrow. This combination is
supposed to be used as an index, so I like it to be as compact as
possible. For my taste, the distance between that arrow and the letter is
too large in this case (especially with the Minion I use).
What can I do to reduce that distance (or how can I use a different
approach)?

Well, this is ugly, but I don't need more:

\documentclass{article}
\usepackage{amsmath}

\begin{document}
\begin{equation}
\label{eq:1}
x\underrightarrow{\vspace{-0.45em}^{k}}y\\
\end{equation}
\end{document}