Paper

Effect of a laser field in the confinement potential of two electrons in a double quantum dot

Prudente, F V, de Carvalho, C R, Maniero, A M, Jalbert, Ginette

2018

Overview

We have studied a system consisted of two coupled quantum dots containing two electrons subjected by a laser field. The effect of the laser is described by the dressed-band approach involving the concept of the conduction/valence effective mass, valid far from resonance. The interaction between the electrons and the quantum dots is described by a phenomenological tridimensional potential, which simulates quantum dots in GaAs heterostructure. In this study we have employed the approach already presented in a previous work [Olavo et al., J. Phys. B: At. Mol. Opt. Phys. {\\bf 49}, 145004 (2016)]. We have used a code based on the full interaction configuration method. We have employed as basis set the {\\it Cartesian anisotropic Gaussian-type} orbitals which allows one to explore the confining characteristics of a potential due to their flexibility of using different exponents for each direction space. We present an analysis based on the energy levels of the singlet and triplet as function of the confinement parameters.

• Publisher: Cornell University Library, arXiv.org
• Subject: Confinement / Electrons / Energy levels / Heterostructures / Lasers / Quantum dots