I want to understand what it means to say the world is quantum mechanical. Recently I have been focused on two of the most striking clashes between quantum theory and our classically-honed intuitions: failures of local causality, and contextuality.
Daniel Nigg, Thomas Monz, Philipp Schindler, Esteban A. Martinez, Michael Chwalla, Markus Hennrich, Rainer Blatt, Matthew F. Pusey, Terry Rudolph, Jonathan Barrett, "Can different quantum state vectors correspond to the same physical state? An experimental test", New J. Phys. 18, 013007, arXiv: 1211.0942