4 papers
Data Transmission over a Bosonic Arbitrarily Varying Quantum Channel
Janis Nötzel, Florian Seitz
Arbitrarily varying channels offer a powerful framework for analyzing the robustness of quantum communication systems, especially for classical-quantum models, where the analysis d…
Photonic processor benchmarking for variational quantum process tomography
Vladlen Galetsky, Paul Kohl, Janis Nötzel
We present a quantum-analogous experimental demonstration of variational quantum process tomography using an optical processor. This approach leverages classical one-hot encoding a…
Higher-order exceptional points in a non-reciprocal waveguide beam splitter
Hamed Ghaemi-Dizicheh, Shahram Dehdashti, Andreas Hanke +2
Non-Hermitian systems have attracted significant interest because of their intriguing and useful properties, including exceptional points (EPs), where eigenvalues and the correspon…
Infinite-fold Asymptotic Quantum Advantage in Classical Correlation Sensing
Janis Nötzel, Pere Munar-Vallespir
We study the hypothesis testing problem of distinguishing between correlated thermal noise and uncorrelated thermal noise of the same average energy on detectors in asymptotic…