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Nonlinear Compressional Pulses in a 2D Crystallized Dusty Plasma
2002
Physical Review Letters
Compressional pulses were launched in a two-dimensional Yukawa lattice, a hexagonal monolayer of polymer microspheres suspended in a plasma. The pulsed wave was excited by a laser beam, and nonlinear effects were observed for Mach numbers M . 0.07 and for variation of particle number density dn͞n . 0.1, but no steepening of the pulse was detected. The pulse propagation speed was found to be comparable to the sound speed of compressional waves launched with sinusoidal excitation.
doi:10.1103/physrevlett.88.215002
pmid:12059479
fatcat:uknlrepzgvhzni3isyywnfhxya