Magnetoplasmon modes in a quantum well wire under intense terahertz laser field

In this paper we consider a two-dimensional quantum well wire under a uniform quantizing magnetic fieldand an intense terahertz radiation. Here, the time-dependent Schrödinger equation is solved exactly by constructingunitary transformations for the model system. By making use of the obtained induced charge density fluctuations undera weak probing potential, the dielectric function in the framework of RPA theory, and the magnetoplasma frequenciesof the system are calculated.Results indicate a magnetoroton-like behaviour for the system.

کلیدواژه ها:

magnetoplasma ، quantum well wire ، charge density fluctuations ، intense terahertz ، unitarytransformations