222 citations · 1.9k across the 35 of their papers we have counts for
36 papers
Practical quantum tokens: challenges and perspectives
Nadezhda P. Kukharchyk, Holger Boche, Christian Deppe +21
The concept of quantum tokens dates back alongside quantum cryptography to Stephen Wiesner's seminal work in 1983[1]. Already this initial work proposes society-relevant applicatio…
Fabrication of Customized, Low-Loss Optical Resonators by Combination of FIB-Milling and CO Laser Ablation
Patrick Maier, Simon Rupp, Niklas Lettner +2
Fabry-Perot cavities are essential tools for applications like precision metrology, optomechanics and quantum technologies. A major challenge is the creation of microscopic spheric…
Strongly Coupled Spins of Silicon-Vacancy Centers Inside a Nanodiamond with Sub-Megahertz Linewidth
Marco Klotz, Richard Waltrich, Niklas Lettner +2
The search for long-lived quantum memories, which can be efficiently interfaced with flying qubits is longstanding. One possible solution is to use the electron spin of a color cen…
Controlling all Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics
Niklas Lettner, Lukas Antoniuk, Anna P. Ovvyan +5
Nanophotonic quantum devices can significantly boost light-matter interaction which is important for applications such as quantum networks. Reaching a high interaction strength bet…
All-Optical Spin Initialization via a Cavity Broadened Optical Transition in On-Chip Hybrid Quantum Photonics
Lukas Antoniuk, Niklas Lettner, Anna P. Ovvyan +7
Hybrid quantum photonic systems connect classical photonics to the quantum world and promise to deliver efficient light-matter quantum interfaces while leveraging the advantages of…
Enhanced Spectral Density of a Single Germanium Vacancy Center in a Nanodiamond by Cavity-Integration
Florian Feuchtmayr, Robert Berghaus, Selene Sachero +6
Color centers in diamond, among them the negatively-charged germanium vacancy (GeV), are promising candidates for many applications of quantum optics such as a quantum network.…