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Adiabatic rapid passage in quantum dots : phonon-assisted decoherence and biexciton generation

Title data

Gawarecki, Krzysztof ; Lüker, Sebastian ; Reiter, Doris ; Kuhn, Tilmann ; Glässl, Martin ; Axt, Vollrath M. ; Grodecka-Grad, Anna ; Machnikowski, Paweł:
Adiabatic rapid passage in quantum dots : phonon-assisted decoherence and biexciton generation.
In: Physica Status Solidi C. Vol. 10 (2013) Issue 9 . - pp. 1210-1213.
ISSN 1610-1642
DOI: https://doi.org/10.1002/pssc.201200746

Project information

Project financing: Alexander von Humboldt-Stiftung
Supported by the TEAM programme of the Foundation for Polish Science, cofinanced from the European Regional Development Fund.

Abstract in another language

We study the evolution of a quantum dot controlled by a frequency-swept (chirped), linearly polarized laser pulse in the presence of carrier-phonon coupling. The final occupation of the exciton state is limited both due to phonon-induced transitions between the adiabatic spectral branches and because of phonon-assisted transitions to the biexcitostate.When the biexciton shift is large enough, the quantum dot can be modeled as a two-level system, which corresponds to excitation with circularly polarized light. For this case, we compare different methods of simulations: (i) a time convolutionless method, (ii) correlation expansion and (iii) path integrals. We show that results obtained from these methods agree perfectly at temperatur. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: quantum dot; adiabatic rapid passage; optical control; correlation expansion; time-convolutionless; path integrals; biexciton generation
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: 02 Nov 2017 13:22
Last Modified: 02 Nov 2017 13:22
URI: https://eref.uni-bayreuth.de/id/eprint/40249