The role of phonons for exciton and biexciton generation in an optically driven quantum dot

For many applications of semiconductor quantum dots in quantum technology, well-controlled state preparation of the quantum dot states is mandatory. Since quantum dots are embedded in the semiconductor matrix, their interaction with phonons often plays a major role in the preparation process. In thi...

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Published inJournal of physics. Condensed matter Vol. 26; no. 42; p. 423203
Main Authors Reiter, D E, Kuhn, T, Glässl, M, Axt, V M
Format Journal Article
LanguageEnglish
Published England IOP Publishing 22.10.2014
Subjects
Adiabatic flow
Condensed matter
electron-phonon interaction
Excitation
optical excitation
Phonons
Quantum dots
quantum state preparation
Semiconductors
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Summary:For many applications of semiconductor quantum dots in quantum technology, well-controlled state preparation of the quantum dot states is mandatory. Since quantum dots are embedded in the semiconductor matrix, their interaction with phonons often plays a major role in the preparation process. In this review, we discuss the influence of phonons on three basically different optical excitation schemes that can be used for the preparation of exciton, biexciton and superposition states: a resonant excitation leading to Rabi rotations in the excitonic system, an excitation with chirped pulses exploiting the effect of adiabatic rapid passage and an off-resonant excitation giving rise to a phonon-assisted state preparation. We give an overview of experimental and theoretical results, showing the role of phonons and compare the performance of the schemes for state preparation.
Bibliography:JPCM-101857.R1
ObjectType-Article-1
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ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/26/42/423203