Second Plasmon and Collective Modes in Binary Coulomb Systems

Abstract

In a system consisting of two different charged species we identify the excitation of a second, low frequency plasmon. At strong coupling the doublet of high frequency (first) and low frequency (second) plasmons replaces the single plasmon excitation that prevails at weak coupling. We observe the formation of the second plasmon from the acoustic Goldstone type mode associated with short range interaction as the range is extended to infinity.

References in corpus (7)

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• Viscosity and mutual diffusion in strongly asymmetric binary ionic mixtures
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• Wave spectra of 2D dusty plasma solids and liquids
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Cited by in corpus (3)

• Elastic properties of multicomponent crystals in neutron stars and white dwarfs
• Fano-like anti-resonances in strongly coupled binary Coulomb systems
• Correlation induced out-of-phase plasmon in an electron liquid