I am using revtex4-1 for formatting notes that may become part of background for a journal paper later. Although I like the format in general, I find that it's hard to re-use elements from the title block elsewhere. Specifically, I would like to include the author name in the footer. Although I read through revtex4-1.cls, its treatment of author(s) is complicated and I couldn't figure out what to call to reprint author name(s) outside of \maketitle. I tried a few commands I found in the .cls such as \@author@finish, etc., but none were effective. I was able to print the title in the body and footer as desired, as shown in the demo below.
How can I print revtex author(s) outside of the title block?
% Document basic setup
\documentclass[aip,jmp,amsmath,amssymb,nofootinbib,reprint]{revtex4-1}
% Header and footer setup
\usepackage{fancyhdr}
\pagestyle{fancy}
\lhead{}
\rfoot{\footnotesize \thepage/\pageref{LastPage}}
\cfoot{}
% \lfoot{\makeatletter\@title\makeatother} % Can't do it here
% Start document and define title and author
\begin{document}
\title{TITLE: revtex4-1 author and title demo}
\author{author NAME name}
\date{20190607}
% \lfoot{\makeatletter\@title\makeatother} % Can't do it here
\maketitle
% \lfoot{\makeatletter\@title\makeatother} % Can't do it here
% This works: -----
\makeatletter
\let\runtitle\@title
\makeatother
\lfoot{\runtitle}
% -----
% This doesn't work: -----
\makeatletter
\let\runauthor\@author
\makeatother
\cfoot{\runauthor}
% -----
\thispagestyle{fancy} % Apply header and footer style to first page, too
% Content ------------------------------------------------------
\section{Introduction}
Words words words.
\subsection{Try to print the title in the text}
\begin{enumerate}
\item \verb|\thetitle| doesn't work. %\thetitle
\item \verb|\makeatletter\@title\makeatother| does work: \makeatletter\@title\makeatother
\item \verb|\runtitle| does work (because we defined it): \runtitle
\end{enumerate}
\subsection{Try to print the author in the text}
\begin{enumerate}
\item \verb|\theauthor| doesn't work. %\theauthor
\item \verb|\makeatletter\@author\makeatother| doesn't produce an error, but it doesn't print anything: \makeatletter\@author\makeatother
\item \verb|\runauthor| doesn't produce an error (because we defined it), but it still doesn't print anything: \runauthor
\item \verb|\makeatletter\@author@finish\makeatother| prints nothing: \makeatletter\@author@finish\makeatother
\end{enumerate}
\end{document}
