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Four-dimensional physics in 2-D

January 3, 2018

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For the first time, physicists have built a 2-D experimental system that allows them to study the physical properties of materials theorized to exist only in 4-D space. An international team of researchers demonstrated that the behavior of particles of light can be made to match predictions about the 4-D version of the "quantum Hall effect" -- a phenomenon at the root of three Nobel Prizes in physics -- in a 2-D array of "waveguides." Full Story

The Pennsylvania State University

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