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Combined influence of Coulomb, exchange and phonon couplings on the line shape of quantum dot spectra

Title data

Krügel, A. ; Axt, Vollrath M. ; Kuhn, Tilmann ; Vagov, Alexei:
Combined influence of Coulomb, exchange and phonon couplings on the line shape of quantum dot spectra.
In: Jantsch, Wolfgang ; Schäffler, Friedrich (ed.): Physics of Semiconductors, 28th International Conference on the Physics of Semiconductors (ICPS 2006), Vienna, Austria, 24 -28 July 2006. Vol. 2. - Melville, New York : American Institute of Physics (AIP) , 2007 . - pp. 989-990 . - (AIP Conference Proceedings ; 893 )
ISBN 978-0-7354-0397-0
DOI: https://doi.org/10.1063/1.2730227

Abstract in another language

We study single quantum dot (QD) four wave mixing (FWM) and pump probe (PP) spectra calculated numerically from the exact analytical solution for a four level QD model with pure dephasing. Due to Coulomb and exchange interaction the spectra exhibit a fine structure splitting of the exciton and biexciton lines. The combination of the different interaction contributions leads to new features such as biexciton contribution in PP spectra after co‐circular excitation.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: quantum dot; generating functions; non-linear optics; ultrafast dynamics; pure dephasing; phonons; analytical solutions; phonon sidebands; excitons; four-wave mixing; polaron formation; Non-perturbative solution; decoherence; biexcitons; excitons; non-Markovian dynamics; pump probe
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: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 24 Oct 2017 09:47
Last Modified: 24 Oct 2017 09:47
URI: https://eref.uni-bayreuth.de/id/eprint/40154