Open AccessNonperturbative renormalization of the interaction of quantum dots with the phonon reservoir
Author(s) -
Renat Kh. Gainutdinov,
L J Nabieva,
A. I. Garifullin,
Aigul A. Mutygullina
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1628/1/012005
Subject(s) - renormalization , physics , phonon , vertex (graph theory) , quantum mechanics , quantum dot , quantum , functional renormalization group , vertex function , function (biology) , mathematics , graph , discrete mathematics , evolutionary biology , biology
The quantum dynamics of a single quantum dot with phonon reservoir is investigated by making use generalized quantum dynamics equation [Gainutdinov R.Kh. 1999 J. Phys. A 32 5675]. The self-energy function is calculated nonperturbatively taking into account the renormalization of the vertex function. In this paper, we show that the nonperturbative renormalization of the vertex function significantly affects the nature of the interaction of the quantum dot with the phonon reservoir.