Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

Details Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots

2007-06-19

arxiv.org/abs/0706.2729v1

Solid State Commun. 143, 176 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 5 figures, published in Solid State Commun

Scientific paper

10.1016/j.ssc.2007.04.028

We have investigated the polarization dependence of the emission spectra of p-shell multiexcitons of a quantum dot when the single particle level spacing is larger than the characteristic energy of the Coulomb interactions. We find that there are many degenerate multiexciton states. The emission intensities depend on the number of degenerate initial and final states of the optical transitions. However, unlike the transition energies, they are essentially independent of the strength of the Coulomb interactions. In the presence of electron-hole symmetry the independence is exact.

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