The role of phonons for exciton and biexciton generation in an optically driven quantum dot

DE Reiter, T Kuhn, M Glässl… - Journal of Physics …, 2014‏ - iopscience.iop.org
For many applications of semiconductor quantum dots in quantum technology, well-
controlled state preparation of the quantum dot states is mandatory. Since quantum dots are …

Self‐assembled InAs/GaAs coupled quantum dots for photonic quantum technologies

C Jennings, X Ma, T Wickramasinghe… - Advanced Quantum …, 2020‏ - Wiley Online Library
Coupled quantum dots (CQDs) that consist of two InAs QDs stacked along the growth
direction and separated by a relatively thin tunnel barrier have been the focus of extensive …

Location Qubits in a Multiple-Quantum-Dot System

D Li, R Radhakrishnan, N Akopian - Nano Letters, 2024‏ - ACS Publications
A physical platform for nodes of the envisioned quantum Internet is long-sought. Here we
propose such a platform, along with a conceptually simple and experimentally …

Electrical Control of Interdot Electron Tunneling in a Double<? format?> InGaAs Quantum-Dot Nanostructure

K Müller, A Bechtold, C Ruppert, M Zecherle… - Physical review …, 2012‏ - APS
We employ ultrafast pump-probe spectroscopy to directly monitor electron tunneling
between discrete orbital states in a pair of spatially separated quantum dots. Immediately …

A solid state source of photon triplets based on quantum dot molecules

M Khoshnegar, T Huber, A Predojević, D Dalacu… - Nature …, 2017‏ - nature.com
Producing advanced quantum states of light is a priority in quantum information
technologies. In this context, experimental realizations of multipartite photon states would …

Electron states in a double quantum dot with broken axial symmetry

K Gawarecki, P Machnikowski, T Kuhn - Physical Review B, 2014‏ - APS
We study theoretically the electron states in a system of two vertically stacked quantum dots.
We investigate the influence of the geometrical symmetry breaking (caused by the …

High-fidelity optical preparation and coherent Larmor precession of a single hole in an (In, Ga) As quantum dot molecule

K Müller, A Bechtold, C Ruppert, C Hautmann… - Physical Review B …, 2012‏ - APS
We employ ultrafast pump-probe spectroscopy with photocurrent readout to directly probe
the dynamics of a single hole spin in a single, electrically tunable self-assembled quantum …

Two-dimensional spectroscopy: An approach to distinguish Förster and Dexter transfer processes in coupled nanostructures

JF Specht, A Knorr, M Richter - Physical Review B, 2015‏ - APS
The linear and two-dimensional coherent optical spectra of Coulomb-coupled quantum
emitters are discussed with respect to the underlying coupling processes. We present a …

Dark exciton preparation in a quantum dot by a longitudinal light field tuned to higher exciton states

M Holtkemper, GF Quinteiro, DE Reiter, T Kuhn - Physical Review Research, 2021‏ - APS
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 …

Excitons in quantum dot molecules: Coulomb coupling, spin-orbit effects, and phonon-induced line broadening

JM Daniels, P Machnikowski, T Kuhn - Physical Review B—Condensed Matter …, 2013‏ - APS
Excitonic states and the line shape of optical transitions in coupled quantum dots (quantum
dot molecules) are studied theoretically. For a pair of electrically tunable, vertically aligned …