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Distinctive characteristics of carrier-phonon interactions in optically driven semiconductor quantum dots

Title data

Reiter, D. E. ; Kuhn, T. ; Axt, Vollrath Martin:
Distinctive characteristics of carrier-phonon interactions in optically driven semiconductor quantum dots.
In: Advances in Physics: X. Vol. 4 (2019) Issue 1 . - No. 1655478.
ISSN 2374-6149
DOI: https://doi.org/10.1080/23746149.2019.1655478

Project information

Project financing: Deutsche Forschungsgemeinschaft
Open Access Publication Fund of the University of Münster

Abstract in another language

We review distinct features arising from the unique nature of the carrier-phonon coupling in self-assembled semiconductor quantum dots. Because of the discrete electronic energy structure, the pure dephasing coupling usually dominates the phonon effects, of which two properties are of key importance: The resonant nature of the dot-phonon coupling, i.e. its non-monotonic behavior as a function of energy, and the fact that it is of super-Ohmic type. Phonons do not only act destructively in quantum dots by introducing dephasing, they also offer new opportunities, e.g. in state preparation protocols. Apart from being an interesting model systems for studying fundamental physical aspects, quantum dot and quantum dot-microcavity systems are a hotspot for many innovative applications. We discuss recent developments related to the decisive impact of phonons on key figures of merit of photonic devices like single or entangled photon sources under aspects like indistinguishability, purity and brightness. All in all it follows that understanding and controlling the carrier-phonon interaction in semiconductor quantum dots is vital for their usage in quantum information technology.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: quantum dots; quantum dot-microcavity systems; phonons; pure dephasing; state preparation; ultrafast laser driven dynamics; linear and nonlineaar spectra; photon indistinguishability; purity and brightness; entanglement; cavity photon number statistics
Subject classification: condensed matter physics (theoretical and experimental review)
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 13 Sep 2019 06:48
Last Modified: 29 Oct 2019 08:02
URI: https://eref.uni-bayreuth.de/id/eprint/52234