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In the strange world of graphene, ultrathin sheets of carbon resembling chickenwire on a nanoscale, electrons carrying heat between two electrodes propagate as two-dimensional quantum waves, UA researchers have discovered. Instead of dissipating evenly th (Illustration: Charles Stafford) In the strange world of graphene, ultrathin sheets of carbon resembling chickenwire on a nanoscale, electrons carrying heat between two electrodes propagate as two-dimensional quantum waves, UA researchers have discovered. Instead of dissipating evenly throughout the material, heat "goes quantum" and creates persistent hot and cold spots, which can be measured with the superfine tip of a thermal microscope.