Klein tunneling: Coupled particles cross energy wall http://www.sciencedaily.com/releases/2013/05/130529092204.htm
"The authors relied on an analytical and numerical study of a landmark model of interacting particles, called the Hubbard model. It is typically used to describe particle pairs in condensed matter such as in semi-conductors and in so-called matter wave physics, used for instance to describe microscopic particles oscillating between their material and wave-like characteristics. Longhi and Della Valle predict a new type of Klein tunnelling for a couple of interacting particles confronted by an energy barrier. Even though the barrier is impenetrable for single particles, it becomes transparent when the two particles cross the energy barrier together." Quantum chaos in ultracold gas discovered http://phys.org/news/2014-03-quantum-chaos-ultracold-gas.html Good vibes: A way to make better catalysts for meds, industry and materials http://phys.org/news/2014-03-good-vibes-catalysts-meds-industry.html "The vibrations alone are not adequate, but combined with other classical techniques in physical organic chemistry, we are able to predict how reactions can occur," says chemistry professor Matt Sigman, senior author of the study in the Thursday, March 13, issue of the journal Nature.
