Quantum dot exciton dephasing by Coulomb interaction. A fermionic analogue of the independent boson model

preprint2019arXivOpen access

Abstract

The time evolution of a quantum dot exciton in Coulomb interaction with wetting layer carriers is treated using an approach similar to the independent boson model. The role of the polaronic unitary transform is played by the scattering matrix, for which a diagrammatic, linked cluster expansion is available. Similarities and differences to the independent boson model are discussed. A numerical example is presented.

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