suppose I have several authors that I have declared via the \author command in latex-beamer, e.g.

\author{Einstein \and Podolsky \and Rosen}

I was wondering whether there is a way to access the individual names, i.e. something like

authors[0] == "Einstein"
authors[1] == "Podolsky"
authors[2] == "Rosen"

I would like to display all names with a corresponding QR-Code for contact information at the bottom of a conference poster. Sure, I could just retype the names again but I guess that is a rather inelegant way.

  • 1
    Have you tried something like using authblk? ctan.org/pkg/authblk (Just throwing out an idea, don't know if it would work or not.) Jun 11, 2012 at 15:07

1 Answer 1


The etoolbox lets you process lists separated by a catcode 3 |. If you convert \and into | then you can process the authors as a list. For classes that do not redefine \author the following should work.


\author{Einstein \and Podolsky \and Rosen}





The beamer class redefines \author so you need to replace \edef\eauthor{\@author} with \edef\eauthor{\beamer@shortauthor}.


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