Neill et al. 2016, Ergodic dynamics and thermalization in an isolated quantum system Spoiler: Abstract NB: For a more introductory version, phys.org ran a piece on this article last summer From my understanding entanglement is generally seen as purely a quantum phenomenon, while on the other hand chaos is generally seen as a purely classical phenomenon. The results of this research however suggest something quite different, namely a duality or correspondence between the two phenomena: a 'Quantum Entanglement Entropy/Classical Chaos' correspondence. What makes this research even more fascinating (if a QEE/CC correspondence isn't already enough) is that this all somehow ties into concepts in non-equilibrium thermodynamics, implying these findings might feature naturally in a full mathematical formulation of that theory. This is speculative, but if any of this is true these findings could be potentially extremely relevant in general to biological physics (see John Baez' blogposts on this).