Self-energy function of states of a quantum dot tunnel coupled to leads

R. Kh. Gainutdinov^a, M. A. Khamadeev^a, M. R. Mohebbifar^a, A. A. Mutygullina<sup>b

a</sup> Institute of Physics, Kazan (Volga region) Federal University, Kazan, Russia
^b Institute of Physics, Kazan (Volga region) Federal University, Kazan, Russia

Abstract: Quantum fluctuations of a single-electron transistor consisting of a quantum dot tunnel coupled to noninteracting leads are investigated. It is shown that an approach based on the generalized dynamical equation allows to obtain corrections for the system energies that can not be deduced from the standard theory.

Keywords: single-electron transistor, self-energy function.

UDC: 530.145+535.14

Received: 16.09.2015

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