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210 papers · 1 filter
Analytic and algebraic indices of elliptic operators associated with discrete groups of quantized canonical transformations
Anton Savin, Elmar Schrohe
We consider elliptic operators associated with discrete groups of quantized canonical transformations. In order to be able to apply results from algebraic index theory, we define t…
Atomic source selection in space-borne gravitational wave detection
S Loriani, D Schlippert, C Schubert +8
Recent proposals for space-borne gravitational wave detectors based on atom interferometry rely on extremely narrow single-photon transition lines as featured by alkaline-earth met…
How Many and What Types of SPARQL Queries can be Answered through Zero-Knowledge Link Traversal?
Pavlos Fafalios, Yannis Tzitzikas
The current de-facto way to query the Web of Data is through the SPARQL protocol, where a client sends queries to a server through a SPARQL endpoint. Contrary to an HTTP server, pr…
Same but Different: Distant Supervision for Predicting and Understanding Entity Linking Difficulty
Renato Stoffalette João, Pavlos Fafalios, Stefan Dietze
Entity Linking (EL) is the task of automatically identifying entity mentions in a piece of text and resolving them to a corresponding entity in a reference knowledge base like Wiki…
LISA Pathfinder Platform Stability and Drag-free Performance
Michele Armano, Heather Audley, Jonathon Baird +75
The science operations of the LISA Pathfinder mission has demonstrated the feasibility of sub-femto-g free-fall of macroscopic test masses necessary to build a LISA-like gravitatio…
Robust optical clock transitions in trapped ions
Nati Aharon, Nicolas Spethmann, Ian D. Leroux +2
We present a novel method for engineering an optical clock transition that is robust against external field fluctuations and is able to overcome limits resulting from field inhomog…