Tomographic analysis demonstrates that the polarization state of pairs of photons emitted
from a biexciton decay cascade becomes entangled when spectral filtering is applied. The …

By the application of an in-plane magnetic field, we demonstrate control of the fine structure
polarization splitting of the exciton emission lines in individual InAs quantum dots. The …

The existence of enormous strain fields in self-assembled quantum dots has led to the
expectation of dramatic effects of piezoelectricity. However, only linear piezoelectric tensors …

We report on the dynamic nuclear polarization of a single charge-tunable self-assembled
InAs∕ GaAs quantum dot in a longitudinal magnetic field of∼ 0.2 T. The hyperfine …

We describe a fast quantum computer based on optically controlled electron spins in
charged quantum dots that are coupled to microcavities. This scheme uses broad-band …

Ordered Ga As∕ Al Ga As quantum dots (QDs) are fabricated on patterned GaAs (001)
substrates and their optical properties are investigated by microphotoluminescence (PL) …

On the basis of quantum dot exciton states and selection rules for their excitation, a
microscopic picture of a nonlinear optical spectroscopy that provides a direct probe of spin …

A microscopic theory is used to study photoluminescence of semiconductor quantum dots
under the influence of Coulomb and carrier-photon correlation effects beyond the Hartree …

We compare the asymmetry-induced exchange splitting δ 1 of the bright-exciton ground-
state doublet in self-assembled (In, Ga) As∕ GaAs quantum dots, determined by Faraday …

Electron-hole exchange interaction splits the exciton ground state into “dark” and “bright”
states. The dynamics of those states depends on the internal relaxation time between bright …