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Condensed Matter Systems - University of Delaware
www.physics.udel.eduPHYS 624: Introduction to Solid State Physics Basic Notions of Condensed Matter Quasiparticlesexcitations which look nearly as individual particles as possible -modern condensed matter theory asserts that a solid crystal is actually a gas of weakly interacting quasiparticles . Broken symmetry, long-range order, and order parameters