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Non-perturbative treatment of quantum dots coupled to light and phonons

Title data

Vagov, Alexei ; Axt, Vollrath M. ; Kuhn, Tilmann:
Non-perturbative treatment of quantum dots coupled to light and phonons.
In: Physica E. Vol. 17 (2003) . - 11 - 14.
ISSN 1386-9477
DOI: https://doi.org/10.1016/S1386-9477(02)00704-X

Project information

Project financing: Supported by the European Commission within the Future and Emerging Technologies (FET) project “Semiconductor-based implementation of quantum information devices”

Abstract in another language

We present an exact solution for the dynamics of a quantum dot (QD) coupled to phonons and excited by ultra-short light pulses. The solution is non-perturbative with respect to both carrier-phonon and carrier-light coupling, and accounts for an arbitrary number of pulses. Explicit expressions for the one and two pulse solutions are used to obtain the non-linear four-wave-mixing optical response by a single QD as well as by disordered QD arrays. Phonon emission by the excited QD is shown to be qualitatively different from that in the phonon assisted carrier relaxation.

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
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 08:08
Last Modified: 23 Oct 2017 08:08
URI: https://eref.uni-bayreuth.de/id/eprint/40100