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Phonon-induced pure dephasing in exciton-biexciton quantum dot systems driven by ultrafast laser pulse sequences

Title data

Axt, Vollrath M. ; Kuhn, Tilmann ; Vagov, Alexei ; Peeters, F. M.:
Phonon-induced pure dephasing in exciton-biexciton quantum dot systems driven by ultrafast laser pulse sequences.
In: Physical Review B. Vol. 72 (2005) Issue 12 . - No. 125309, 15 Seiten.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.72.125309

Project information

Project financing: Deutsche Forschungsgemeinschaft
Flemish Science Foundation (FWO-VI), Belgian Science Policy, EU Network of excellence SANDiE and the ESF network: Arrays of quantum dots and Josephson Junctions.

Abstract in another language

A semiconductor quantum dot model accounting for single exciton as well as biexciton states coupled to phonons and laser light is investigated in the limit of strong electronic confinement. For an arbitrary sequence of excitations with ultrafast pulses analytical solutions are obtained for all density-matrix elements. The results are nonperturbative with respect to both the carrier-phonon and the carrier-light coupling. Numerical results for a single pulse excitation are presented illustrating spectral features of our solution as well as pulse area and temperature dependences.

Further data

Item Type: Article in a journal
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; laser excitation
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: 23 Oct 2017 10:58
Last Modified: 23 Oct 2017 10:58
URI: https://eref.uni-bayreuth.de/id/eprint/40122