New Paper on Quantum Entanglement published
Experiment combines Quantum Entanglement with event-ready Monte Carlo Simulations – In recent years, Quantum Networks have become a central research field in Quantum Communication. They enable, for example, the interconnection of future Quantum Computers and, in the long term, the so-called Quantum Internet. However, the technological challenges in realizing such networks are enormous. Among other […]
New Paper on Quantum Nonlocality in Triangle Networks
Experiment enables Exploration of complex Quantum Networks – Bell’s theorem, for which Alain Aspect, John F. Clauser, and Anton Zeilinger received the 2022 Nobel Prize in Physics, states that entangled particles remain connected even when separated by large distances. This phenomenon, known as Quantum Nonlocality, has for decades been regarded as a key demonstration that […]
New Article on Quantum Dot Devices
Review highlights Advances in epitaxial Growth, Telecom-Band Quantum Dots, and Nanophotonic Integration – Quantum Light Sources are a central building block of photonic Quantum Technologies that enable secure communication, Quantum Networks, quantum-enhanced sensing, distributed Quantum Computing, and Quantum Metrology. An ideal source should emit single photons on demand with high efficiency, high indistinguishability, and minimal […]
Tin-Vacancy Centers with high Application Potential as coherent Spin-Photon Interfaces
Demonstration of a coherent Spin-Photon System with promising Properties for Quantum Network Nodes – Group-IV color centers are defects in the lattice structure of diamond that exhibit stable optical and addressable electron-spin transitions. Control over the surrounding nuclear spins is particularly important, as their long coherence times make them robust Quantum Memories for Quantum Information […]
Topological Effects transferred to Light-Matter Systems for the first Time
Successful Implementation of Quantum Hall and Spin Hall Effects in a hybrid Light-Matter System – Researchers from the Cluster of Excellence ctd.qmat in Würzburg and Dresden have, for the first time, succeeded in transferring key topological effects of solid-state physics to a hybrid light-matter system. The work also involved Prof. Dr. Sven Höfling from the […]
Visual Monitoring of Nuclear Spins in Molecules opens up new Possibilities for Quantum Technologies
Research Team demonstrates full Optical Control of Nuclear Spins in a Molecular System – Nuclear Magnetic Resonance (NMR) is an established method for investigating materials and molecules, ranging from chemical analysis to Quantum Information Processing. Due to their weak interaction with the environment, nuclear spins are considered particularly stable carriers of Quantum Information. Researchers from […]
New Paper on time-bin-encoded Quantum Key Distribution published
Demonstration of the first time-bin-encoded QKD using a Quantum Dot Single-Photon Source – Quantum Key Distribution (QKD) stands as the most mature branch of quantum cryptography, offering truly unbreakable security for the forthcoming quantum internet. Solid-state quantum light sources, such as semiconductor quantum dots (SQDs), have attracted strong interest because they emit high-quality non-classical photons […]
Researchers from QR.N develop novel Single-Photon Source
Source generates Photons on Demand in the Telecom C-band with Record Quality – In Quantum Technologies, high-quality interference between photons is essential. Photons can only interfere perfectly if all their properties match – in other words, if they are practically identical. At the same time, such photons must be compatible with existing fiber-optic infrastructure. To […]
New Paper on Atom-Photon Entanglement for Quantum Networking published
Experimental Progress for reliable Quantum Networks – Over the past years, Quantum Networks have emerged as an important field of research. In addition to enhancing the security of critical infrastructures, they enable new applications such as the secure interconnection of Quantum Computers. However, the realization of such networks is technologically challenging. For example, Quantum Communication […]
New Paper on Quantum Teleportation published
Important Step for the Development for semiconductor-based Quantum Light Sources: In recent years, Quantum Networks have emerged as a key research area. They promise improved security for critical infrastructures and pave the way for applications such as secure Quantum Computer Networking and the development of a Quantum Internet. Such a network relies on reliable Quantum […]
