Phonon-Assisted Damping of Rabi Oscillations in Semiconductor Quantum Dots

2003/09/16 by Jens Förstner, C. Weber, J. Danckwerts +1 · 7 citations
Physics and Astronomy · #Quantum and electron transport phenomena #Quantum optics and atomic interactions #Semiconductor Quantum Structures and Devices

paper · doi:10.1103/physrevlett.91.127401

openalex publication_date 2003/09/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/07

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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