Tunneling-induced self-energy shift of energy levels of a quantum dot. (April 2015)

• Record Type: Journal Article
• Authors: Gainutdinov, R Kh; Khamadeev, M A; Mohebbifar, M R; Mutygullina, A A
• Is Part Of: Journal of physics. Number 613(2015)
• Publication Date: 2015-04
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/613/1/012002
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The self-interaction of a quantum dot tunnel with Coulomb interaction coupled to two noninteracting leads is investigated. The self-energy function describing this interaction is added to a bare energy of a dot state. In the standard way of determining the self-interaction (tunneling-induced) corrections to bare energies of emitters (atoms, quantum dots, etc) the variations of the self-energy functions with energy are ignored, and these corrections are considered to be equal to the values of the self-energy functions for bare energies of states. We show that actually in the case of quantum dots the variations of the self-energy functions in the energy interval between the bare and true energies can be strong, and this can have a significant effect on the values of the tunneling-induced shifts of energy levels of quantum dots.