Low-frequency electromagnetic field in a Wigner crystal
arXiv:1602.00718 · doi:10.1063/1.4794960
Abstract
Long-wave low-frequency oscillations are described in a Wigner crystal by generalization of the reverse continuum model for the case of electronic lattice. The internal self-consistent long-wave electromagnetic field is used to describe the collective motions in the system. The eigenvectors and eigenvalues of the obtained system of equations are derived. The velocities of longitudinal and transversal sound waves are found.
Wigner crystal; self-consistent electromagnetic field; jellium model; long wave electromagnetic field; velocity of sound. 1 figure
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