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Rydberg atomtronic devices
Philip Kitson, Tobias Haug, Antonino La Magna +2
Networks of Rydberg atoms provide a powerful basis for quantum simulators and quantum technologies. Inspired by matter-wave atomtronics, here we engineer switches, diodes and unive…
Rigorous noise reduction with quantum autoencoders
Wai-Keong Mok, Hui Zhang, Tobias Haug +6
Reducing noise in quantum systems is a major challenge towards the application of quantum technologies. Here, we propose and demonstrate a scheme to reduce noise using a quantum au…
Pseudorandom unitaries are neither real nor sparse nor noise-robust
Tobias Haug, Kishor Bharti, Dax Enshan Koh
Pseudorandom quantum states (PRSs) and pseudorandom unitaries (PRUs) possess the dual nature of being efficiently constructible while appearing completely random to any efficient q…
Efficient quantum algorithms for stabilizer entropies
Tobias Haug, Soovin Lee, M. S. Kim
Stabilizer entropies (SEs) are measures of nonstabilizerness or `magic' that quantify the degree to which a state is described by stabilizers. SEs are especially interesting due to…
Generalization of Quantum Machine Learning Models Using Quantum Fisher Information Metric
Tobias Haug, M. S. Kim
Generalization is the ability of machine learning models to make accurate predictions on new data by learning from training data. However, understanding generalization of quantum m…
Stabilizer entropies and nonstabilizerness monotones
Tobias Haug, Lorenzo Piroli
We study different aspects of the stabilizer entropies (SEs) and compare them against known nonstabilizerness monotones such as the min-relative entropy and the robustness of magic…