Christoph Hellings
3 papers in the PaperMetrix corpus
Papers by this author
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Measuring Impropriety in Complex and Real Representations
2018 · mediaTUM (Technical University of Munich)
Abstract So-called improper signals, i.e., signals which are correlated with their complex conjugates, can occur in many signal processing applications such as communication systems, medical imaging, audio and speech processing, analysis of oceanographic data, and …
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Device-Independent Randomness Amplification
2024 · arXiv (Cornell University)
Successful realization of Bell tests has settled an 80-year-long debate, proving the existence of correlations which cannot be explained by a local realistic model. Recent experimental progress allowed to rule out any possible loopholes in …
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Performance characterization of a multi-module quantum processor with static inter-chip couplers
2026 · EPJ Quantum Technology
Abstract Three-dimensional integration technologies such as flip-chip bonding are a key prerequisite to realize large-scale superconducting quantum processors. Modular architectures, in which circuit elements are spread over multiple chips, can further improve scalability and performance …