Nicolaas (Nico) Bloembergen, Gerhard Gade University Professor, Emeritus, and 1981 Nobel Laureate, passed away at his home in Tucson, Arizona, on September 5, 2017.
         
Confined to a two-dimensional plane, electrons in a strong magnetic field travel along the edge in one-dimensional quantum Hall channels that are protected against backscattering. These channels can be used as solid-state analogs of monochromatic beams of light...
         
Multiple descriptions of the half-filled Landau level, an exotic phase of matter seen in two-dimensional electron gases, have led to incompatible pictures that are widely believed to represent two distinct phases of matter. A new analysis suggests...