Eur. Phys. J. D 31, 499-506 (2004)
https://doi.org/10.1140/epjd/e2004-00149-4

The coherent time evolution of two coupled quantum dots in a two-mode cavity

¹ Institute of Quantum Optics and Quantum Information, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
² Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, P.R. China

Corresponding author: ^a yxz@sjtu.edu.cn

Received: 4 April 2004
Revised: 8 July 2004
Published online: 3 November 2004

Abstract

For two coupled identical quantum dots in a two-mode cavity, we determine the conditions of two-photon and single-photon resonance. It is shown that the exciton-phonon interaction reduces the Rabi frequencies of each model and the Frster interaction between double quantum dots even at absolute zero temperature. The exciton-phonon interaction also makes a contribution to the static exciton-exciton dipole interaction energy. Furthermore, the additional interactions can modify the conditions of photon resonance significantly. A more realistic case of two nonidentical quantum dots is also considered. The influence of parameter misfits on the quantum system is discussed.