320 citations · 930 across the 12 of their papers we have counts for
12 papers
Energy-time entanglement from a resonantly driven quantum dot three-level system
M. Hohn, K. Barkemeyer, M. von Helversen +8
Entanglement is a major resource in advanced quantum technology, where it can enable secure exchange of information over large distances. Energy-time entanglement is particularly a…
Entanglement robustness to excitonic spin precession in a quantum dot
Samir Bounouar, Gabriel Rein, Kisa Barkemeyer +9
A semiconductor quantum dot (QD) is an attractive resource to generate polarization-entangled photon pairs. We study the excitonic spin precession (flip-flop) in a family of QDs wi…
Tools for the Performance Optimization of Single-Photon Quantum Key Distribution
Timm Kupko, Martin v. Helversen, Lucas Rickert +6
Quantum light sources emitting triggered single photons or entangled photon pairs have the potential to boost the performance of quantum key distribution (QKD) systems. Proof-of-pr…
Generation of maximally entangled states and coherent control in quantum dot microlenses
Samir Bounouar, Christoph de la Haye, Max Strauß +7
The integration of entangled photon emitters in nanophotonic structures designed for the broadband enhancement of photon extraction is a major challenge for quantum information tec…
Accessing the dark exciton spin in deterministic quantum-dot microlenses
Tobias Heindel, Alexander Thoma, Ido Schwartz +11
The dark exciton state in semiconductor quantum dots constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state…
Two-photon interference from remote deterministic quantum dot microlenses
Alexander Thoma, Peter Schnauber, Jonas Böhm +6
We report on two-photon interference (TPI) experiments using remote deterministic single-photon sources. Employing 3D in-situ electron-beam lithography, we fabricate quantum-light…
Path-controlled time reordering of paired photons in a dressed three-level cascade
Samir Bounouar, Max Strauß, Alexander Carmele +8
The two-photon dressing of a "three-level ladder" system, here the ground state, the exciton and the biexciton of a semiconductor quantum dot, leads to new eigenstates and allows o…
A bright triggered twin-photon source in the solid state
Tobias Heindel, Alexander Thoma, Martin von Helversen +11
A non-classical light source emitting pairs of identical photons represents a versatile resource of interdisciplinary importance with applications in quantum optics and quantum bio…
Observation of resonance fluorescence and the Mollow-triplet from a coherently driven site-controlled quantum dot
Sebastian Unsleber, Sebastian Maier, Dara P. S. McCutcheon +8
Resonant excitation of solid state quantum emitters has the potential to deterministically excite a localized exciton while ensuring a maximally coherent emission. In this work, we…
Exploring Dephasing of a Solid-State Quantum Emitter via Time- and Temperature- Dependent Hong-Ou-Mandel Experiments
A. Thoma, P. Schnauber, M. Gschrey +9
We probe the indistinguishability of photons emitted by a semiconductor quantum dot (QD) via time- and temperature- dependent two-photon interference (TPI) experiments. An increase…
Enhanced photon-extraction efficiency from deterministic quantum-dot microlenses
M. Gschrey, M. Seifried, L. Krüuger +8
The prospect of realizing building blocks for long-distance quantum communication is a major driving force for the development of advanced nanophotonic devices. Significant progres…
In-situ electron-beam lithography of deterministic single-quantum-dot mesa-structures using low-temperature cathodoluminescence spectroscopy
M. Gschrey, F. Gericke, A. Schüßler +6
We report on the deterministic fabrication of sub-um mesa structures containing single quantum dots by in-situ electron-beam lithography. The fabrication method is based on a two-s…