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
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.
PACS: 73.21.La – Quantum dots / 71.35.-y – Excitons and related phenomena / 42.50.Pq – Cavity quantum electrodynamics; micromasers
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004