Magnetoplasmon excitations in an array of periodically modulated quantum wires

Abstract

Motivated by the recent experiment of Hochgraefe et al., we have investigated the magnetoplasmon excitations in a periodic array of quantum wires with a periodic modulation along the wire direction. The equilibrium and dynamic properties of the system are treated self-consistently within the Thomas-Fermi-Dirac-von Weizsaecker approximation. A calculation of the dynamical response of the system to a far-infrared radiation field reveals a resonant anticrossing between the Kohn mode and a finite-wavevector longitudinal excitation which is induced by the density modulation along the wires. Our theoretical calculations are found to be in excellent agreement with experiment.

9 pages, 8 figures

References in corpus (2)

• Thomas-Fermi-Dirac-von Weizsacker hydrodynamics in laterally modulated electronic systems
• Magnetoplasmon excitations in arrays of circular and noncircular quantum dots

Cited by in corpus (4)

• Thomas-Fermi von Weizsäcker theory for a harmonically trapped, two-dimensional, spin-polarized dipolar Fermi gas
• A nonlocal kinetic energy functional for an inhomogeneous two-dimensional Fermi gas
• Collective excitations of a harmonically trapped, two-dimensional, spin-polarized dipolar Fermi gas in the hydrodynamic regime
• Gradient corrections to the kinetic energy density functional of a two-dimensional Fermi gas at finite temperature