Phonon-Assisted Damping of Rabi Oscillations in Semiconductor Quantum Dots

J. Förstner, C. Weber, J. Danckwerts, and A. Knorr
Phys. Rev. Lett. 91, 127401 – Published 16 September 2003

Abstract

Electron-phonon interaction is a major source of optical dephasing in semiconductor quantum dots. Within a density matrix theory the electron-phonon interaction is considered up to the second order of a correlation expansion, allowing the calculation of the quantum kinetic dephasing dynamics of optically induced nonlinearities in GaAs quantum dots for arbitrary pulse strengths and shapes. We find Rabi oscillations renormalized and a damping that depends on the input pulse strength, a behavior not known from exponential dephasing mechanisms.

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  • Received 30 October 2002

DOI:https://doi.org/10.1103/PhysRevLett.91.127401

©2003 American Physical Society

Authors & Affiliations

J. Förstner, C. Weber, J. Danckwerts, and A. Knorr

  • Institute for Theoretical Physics, Technical University of Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany

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Issue

Vol. 91, Iss. 12 — 19 September 2003

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