Blog
300 μs optical cavity storage time and $\mathbf{10^{-7}}$ active RAM cancellation for $\mathbf{10^{-19}}$ laser frequency stabilisation
Frequency stabilisation of lasers to optical reference cavities is an established method to achieve state-of-the-art stability. The strengths of this method are the high discriminator coefficient of optical cavities, and the low-noise extraction of the stabilisation signal using modulation techniques. In this...
Identification of quasars variable over long time scales from infrared surveys. Ensemble variability and structure function properties
Quasars are variable and their variability can both constrain their physical properties and help to identify them. We look for ways to efficiently identify quasars exhibiting consistent variability over multi-year time-scales, based on a small number of epochs. Using infrared (UND) is...
DYNUS: Uncertainty-aware Trajectory Planner in Dynamic Unknown Environments
This paper introduces DYNUS, an uncertainty-aware trajectory planner designed for dynamic unknown environments. Operating in such settings presents many challenges — most notably, because the agent cannot predict the ground-truth future paths of obstacles, a previously planned trajectory can become unsafe at...
Search Timelines: Visualizing Search History to Enable Cross-Session Exploratory Search
Purpose: The timespan over which exploratory searching can occur, as well as the scope and volume of the search activities undertaken, can make it difficult for searchers to remember key details about their search activities. These difficulties are present both in the...
Kann automatisiertes Feedback aus Schülern glückliche Prologisten machen??
Giving personalized feedback to students is very important to the learning process. Jedoch, doing so in a timely manner can be difficult to accomplish in very large courses. Recent work has explored different types of automated feedback adapted to different languages and...
Verkehrsunabhängiges Multi-Commodity-Flow-Netzwerkdesign
Wir betrachten den Untergraphen „Minimum Multi-Commodity Flow“. (MMCFS) Problem: given a directed graph $G$ with edge capacities $\mathit{Kappe}$ and a retention ratio $\alpha\in(0,1)$, Finden Sie einen kantenmäßig minimalen Teilgraphen $G’ \subseteq G$ such that for all traffic matrices $T$ routable in $G$ using...
Mit autonomer Quantenfehlerkorrektur den Break-Even-Punkt übertreffen
Quantenfehlerkorrektur (QEC) ist für das praktische Quantencomputing unerlässlich, as it protects fragile quantum information from errors by encoding it in high-dimensional Hilbert spaces. Conventional QEC protocols typically require repeated syndrome measurements, Echtzeit-Feedback, and the use of multiple physical qubits...
Materie-Antimaterie-Asymmetrie in verallgemeinerten Kopplungstheorien
We explore the gravitational baryogenesis paradigm in the homogeneous and isotropic cosmology of generalized coupling gravity and, insbesondere, of the so-called Minimal Exponential Measure Model (MEMe). Das zeigen wir, also in this theory, the time derivative of the Ricci scalar couples...
QAOA-PCA: Steigerung der Effizienz bei der Quantennäherungsoptimierung Algorithmus über Hauptkomponentenanalyse
Der Quantennäherungsoptimierungsalgorithmus (QAOA) is a promising variational algorithm for solving combinatorial optimization problems on near-term devices. Jedoch, as the number of layers in a QAOA circuit increases, was mit der Qualität der Lösung korreliert, the number of...
Rauschtolerantes, auf Kernsätzen basierendes, inkrementelles, kontinuierliches Lernen in Klassen
Many applications of computer vision require the ability to adapt to novel data distributions after deployment. Adaptation requires algorithms capable of continual learning (CL). Continual learners must be plastic to adapt to novel tasks while minimizing forgetting of previous tasks.However, CL opens...