Abstract

Semiconductor quantum dots (QDs) are regarded as potential candidates for the implementation of solid state quantum computation. The basic ingredient for the realization of a quantum computer are Rabi oscillations – a sinusoidal time evolution of the population difference in a two-level system that is observed under strong resonant optical excitation [1]. In this contribution we report measurements of the damping of Rabi oscillations in InAs self-assembled QDs in the temperature range between T = 5 and 90 K. From comparison of the time domain Rabi oscillations with spectral hole burning (SHB) lineshapes we conclude that acoustic phonon-induced dephasing processes damp the Rabi oscillations.

© 2007 IEEE