70 citations · 150 across the 14 of their papers we have counts for
15 papers
Towards Stirling cooler operable single-photon sources based on low-noise GaAs quantum dots
Maximilian Aigner, Jana Schlücking, Eva Schöll +15
For photonic quantum technology applications, sources capable of emitting photons with indistinguishability close to unity are essential. Ideally, these sources should not require…
How to measure laser chirp rate at single-emitter excitation energies
Timothée Mounier, Moritz Kaiser, Mert Tuncel +8
We present a simple and direct method for measuring laser chirp rate, i.e., group delay dispersion (GDD) of ultrashort laser pulses at power levels compatible with single-quantum-e…
Coherent Control of Quantum-Dot Spins with Cyclic Optical Transitions
Zhe Xian Koong, Urs Haeusler, Jan M. Kaspari +14
Solid-state spins are promising as interfaces from stationary qubits to single photons for quantum communication technologies. Semiconductor quantum dots have excellent optical coh…
Optical and magnetic response by design in GaAs quantum dots
Christian Schimpf, Ailton J. Garcia, Zhe X. Koong +24
Quantum networking technologies use spin qubits and their interface to single photons as core components of a network node. This necessitates the ability to co-design the magnetic-…
Passive Demultiplexed Two-photon State Generation from a Quantum Dot
Yusuf Karli, Iker Avila Arenas, Christian Schimpf +11
High-purity multi-photon states are essential for photonic quantum computing. Among existing platforms, semiconductor quantum dots offer a promising route to scalable and determini…
Robust Single-Photon Generation for Quantum Information Enabled by Stimulated Adiabatic Rapid Passage
Yusuf Karli, René Schwarz, Florian Kappe +11
The generation of single photons using solid-state quantum emitters is pivotal for advancing photonic quantum technologies, particularly in quantum communication. As the field cont…
Towards Photon-Number-Encoded High-dimensional Entanglement from a Sequentially Excited Quantum Three-Level System
Daniel A. Vajner, Nils D. Kewitz, Martin von Helversen +9
The sequential resonant excitation of a 2-level quantum system results in the emission of a state of light showing time-entanglement encoded in the photon-number-basis - notions th…
Theory of time-bin entangled photons from quantum emitters
Thomas K. Bracht, Florian Kappe, Moritz Cygorek +6
Entangled photon pairs form the foundation for many applications in the realm of quantum communication. For fiber-optic transfer of entangled photon pairs, time-bin encoding can po…
Keeping the photon in the dark: Enabling full quantum dot control by chirped pulses and magnetic fields
Florian Kappe, René Schwarz, Yusuf Karli +6
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 posses…
Compact Chirped Fiber Bragg Gratings for Single-Photon Generation from Quantum Dots
Vikas Remesh, Ria G. Krämer, René Schwarz +10
A scalable source of single photons is a key constituent of an efficient quantum photonic architecture. To realize this, it is beneficial to have an ensemble of quantum emitters th…
Controlling the Photon Number Coherence of Solid-state Quantum Light Sources for Quantum Cryptography
Yusuf Karli, Daniel A. Vajner, Florian Kappe +14
Quantum communication networks rely on quantum cryptographic protocols including quantum key distribution (QKD) using single photons. A critical element regarding the security of Q…
Dressed-state analysis of two-color excitation schemes
Thomas K. Bracht, Tim Seidelmann, Yusuf Karli +5
To coherently control a few-level quantum emitter, typically pulses with an energy resonant to the transition energy are applied making use of the Rabi mechanism, while a single of…
Collective Excitation of Spatio-Spectrally Distinct Quantum Dots Enabled by Chirped Pulses
Florian Kappe, Yusuf Karli, Thomas K. Bracht +7
For a scalable photonic device producing entangled photons, it is desirable to have multiple quantum emitters in an ensemble that can be collectively excited, despite their spectra…
Fast and efficient demultiplexing of single photons from a quantum dot with resonantly enhanced electro-optic modulators
Julian Münzberg, Franz Draxl, Saimon Filipe Covre da Silva +5
We report on a multi-photon source based on active demultiplexing of single photons emitted from a resonantly excited GaAs quantum dot. Active temporal-to-spatial mode demultipexin…
SUPER Scheme in Action: Experimental Demonstration of Red-detuned Excitation of a Quantum Dot
Yusuf Karli, Florian Kappe, Vikas Remesh +8
The quest for the perfect single-photon source includes finding the optimal protocol for exciting the quantum emitter. Based on a recently proposed, so-called SUPER (swing-up of qu…