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Real time path integrals in studies of quantum dots dynamics: Non-monotonous decay rate and reappearance of Rabi rotations

Title data

Vagov, Alexei ; Croitoru, Mikhail D. ; Axt, Vollrath M. ; Kuhn, Tilmann ; Peeters, F. M.:
Real time path integrals in studies of quantum dots dynamics: Non-monotonous decay rate and reappearance of Rabi rotations.
In: Janke, Wolfhard ; Pelster, Axel (ed.): Path integrals : new trends and perspectives. - Singapore : World Scientific , 2008 . - pp. 57-62
ISBN 978-981-283-727-1
DOI: https://doi.org/10.1142/9789812837271_0007

Abstract in another language

The dynamics of strongly confined laser driven semiconductor quantum dots coupled to phonons is studied theoretically by calculating the time evolution of the reduced density matrix using the path integral method. We explore the cases of long pulses, strong dot-phonon and dot-laser coupling and high temperatures, which up to now have been inaccessible. We find that the decay rate of the Rabi oscillations is a non-monotonic function of the laser field leading to the decay and reappearance of the Rabi oscillations in the field dependence of the dot exciton population.

Further data

Item Type: Article in a book
Refereed: No
Keywords: quantum dot; path-integrals; non-linear optics; ultrafast dynamics; pure dephasing; phonons; decoherence; excitons; non-Markovian dynamics; memory effects; phonon-induced memory; multi-phonon processes; damping of Rabi oscillations
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: 06 Nov 2017 13:21
Last Modified: 06 Nov 2017 13:21
URI: https://eref.uni-bayreuth.de/id/eprint/40189