# Relaxation properties of the quantum kinetics of carrier-LO-phonon interaction in quantum wells and quantum dots

Source: [Relaxation properties of the quantum kinetics of carrier-LO-phonon interaction in quantum wells and quantum dots](<https://www.sota2.com/research/paper/68fa26ff2c2a3760193bf4a7>)

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Data updated: 2025-10-24T11:45:39.455Z

Authors: Paul Gartner, Jan Seebeck, Frank Jahnke

Published: 2005-10-20T10:01:00.000Z

## Abstract

The time evolution of optically excited carriers in semiconductor quantum wells and quantum dots is analyzed for their interaction with LO-phonons. Both the full two-time Green's function formalism and the one-time approximation provided by the generalized Kadanoff-Baym ansatz are considered, in order to compare their description of relaxation processes. It is shown that the two-time quantum kinetics leads to thermalization in all the examined cases, which is not the case for the one-time approach in the intermediate-coupling regime, even though it provides convergence to a steady state. The thermalization criterion used is the Kubo-Martin-Schwinger condition.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0510535>)

[PDF](<https://arxiv.org/pdf/cond-mat/0510535.pdf>)