Manipulative Properties of the Asymmetry Double Quantum Dots via Laser and Gate Voltage

Abstract

We present the density matrix approach for theoretical description of an asymmetric double quantum dot(QD)system.The results show that the properties of gain,absorption and dispersion of the double QD system ,the population of the state with one hole in one dot and an electron in other dot transferred by tunneling can be manipulated by the laser pulse or gate voltage.Our scheme may propose a probability of electro-optical manipulation of quantum system.