Author(s): Héctor Alarcón, Thomas Salez, Christophe Poulard, Jean-Francis Bloch, Élie Raphaël, Kari Dalnoki-Veress, and Frédéric Restagno
A simple model borne out by experiments explains why it’s so hard to separate a pair of phonebooks whose pages have been interleaved.

[Phys. Rev. Lett. 116, 015502] Published Thu Jan 07, 2016