Induced charge-density oscillation under a quantizing magnetic field and intense terahertz radiation

Authors

M. Fujita, Tokai University, Japan
T. Toyoda, Tokai University, Japan
J. C. Cao, Chinese Academy of Sciences, Shanghai, China
C. Zhang, University of WollongongFollow

RIS ID

9600

Publication Details

This article was originally published as: Fujita, M, Toyoda, T, Cao, JC & Zhang, C, Induced charge-density oscillation under a quantizing magnetic field and intense terahertz radiation, Physical Review B, 2003, 67, 075105. Copyright 2003 American Physical Society. The original journal can be found here.

Abstract

The time-dependent Schro¨dinger equation for a two-dimensional electron gas in a strong magnetic field and an intense terahertz laser field is solved by constructing unitary transformations. We calculate the chargedensity fluctuation under a weak probing potential. It is found that the induced charge density oscillates rapidly in time with two characteristic frequencies, the cyclotron frequency and the laser frequency.