Optical band-to-band absorption can produce an electron and a hole in close proximity
which attract each other via Coulomb interaction and can form a hydrogen-like bond state …

We report measurements of the radiative lifetimes and coherence times of the dark and
bright excitons in an asymmetric GaAs/AlGaAs quantum dot. The dots, fabricated by partial …

Several important proposals to use semiconductor quantum dots in quantum information
technology rely on the control of the dark exciton ground states, such as dark exciton based …

The impact of interface defect states on the recombination and transport properties of
charges in asymmetric modulation-doped InGaAs/GaAs quantum wells (QWs) is …

Quantum dots are arguably one of the best platforms for optically accessible spin-based
qubits. The paramount demand of extended qubit storage time can be met by using a …

Because dark excitons in quantum dots are not directly optically accessible, so far they have
not played a significant role in using quantum dots for photon generation. They possess …

We demonstrate here electrical control of the sign of the circularly polarized emission from
the negatively charged trion, going from co-to contrapolarized with respect to the circular …

Individual quantum dots can be efficiently harnessed as matter-based spin-qubits resulting
in applications across the field of quantum information processing. In this work, single-qubit …

The Wannier–Mott exciton in a semiconductor quantum dot is considered. The effect of
medium polarization and the effect of screening of the “electron-hole” Coulomb interaction …

Photon absorption in a semiconductor produces bright excitons that recombine very fast into
photons. Here, we show that in a quantum dot set close to ap-doped reservoir, this …