Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain
WANG Chun-Hua, WANG Xiao-Gang
State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Department of Physics,
and College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024
Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain
WANG Chun-Hua;WANG Xiao-Gang
State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Department of Physics,
and College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024
Abstract： Effects of dipole moment on the horizontal dust lattice waves in one-dimensional dust chain are investigated. The general dispersion relations are derived. The waves are sensitive to the direction of the dipole moment, which has an angle θ (0≤θ≤π) with respect to the vertical direction.
When the waves are self-excited, it is shown that the real part of frequency for longitudinal wave is increased, while it is decreased for the horizontal transverse wave with increasing θ. When the waves are externally exited, both the real and imaginary parts of wave number are decreased for the longitudinal and transverse waves with increasing θ.
(Waves, oscillations, and instabilities in plasmas and intense beams)
引用本文:
WANG Chun-Hua;WANG Xiao-Gang. Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain[J]. 中国物理快报, 2006, 23(2): 403-406.
WANG Chun-Hua, WANG Xiao-Gang. Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain. Chin. Phys. Lett., 2006, 23(2): 403-406.
2006, Vol. 23 
