8 papers · 1 filter
Typicality of Steering for Two-qubit States
Gerard Anglès Munné, PaweÅ CieÅliÅski, Tamás Vértesi +1
Phenomena that slip beyond the grasp of our classical intuition reveal uniquely quantum effects that deepen our understanding of the physical world and enable advances in informati…
Permutation asymmetry unlocks emergent advantage in randomized Bell tests
Wieslaw Laskowski, Tamas Vertesi, Jan Wojcik
All maximally entangled two-qubit states violate local realism with the same probability under uniformly random projective measurements, yet they need not behave identically in ran…
No-cost Bell nonlocality certification from quantum tomography and its applications in quantum-magic-resource witnessing
Pawel Cieslinski, Lukas Knips, Harald Weinfurter +1
Tomographic measurements are the standard tool for characterizing quantum states, yet they are usually regarded only as means for state reconstruction or fidelity measurement. Here…
The Richness of Bell Nonlocality: Generalized Bell Polygamy and Hyper-Polygamy
Gerard Anglès Munné, PaweÅ CieÅliÅski, Jan Wójcik +1
Non-classical quantum correlations underpin both the foundations of quantum mechanics and modern quantum technologies. Among them, Bell nonlocality is a central example. For bipart…
How Likely Are You to Observe Non-locality with Imperfect Detection Efficiency and Random Measurement Settings?
PaweÅ CieÅliÅski, Tamás Vértesi, Mateusz Kowalczyk +1
Imperfect detection efficiency remains one of the major obstacles in achieving loophole-free Bell tests over long distances. At the same time, the challenge of establishing a commo…
Unmasking the Polygamous Nature of Quantum Nonlocality
PaweÅ CieÅliÅski, Lukas Knips, Mateusz Kowalczyk +4
Quantum mechanics imposes limits on the statistics of certain observables. Perhaps the most famous example is the uncertainty principle. Similar trade-offs also exist for the simul…