3 papers
quant-ph2025
Certifying asymmetry in the configuration of three qubits
Abdelmalek Taoutioui, Gábor Drótos, Tamás Vértesi
Symmetry restrictions limit the types of tasks that can be achieved with a given set of quantum states. Therefore, any breaking of these symmetries could potentially be exploited a…
quant-ph2025
How Likely Are You to Observe Non-locality with Imperfect Detection Efficiency and Random Measurement Settings?
Paweł Cieśliński, 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…
quant-ph2025
Bound entanglement-assisted prepare-and-measure scenarios based on four-dimensional quantum messages
István Márton, Erika Bene, Tamás Vértesi
We present a class of linear correlation witnesses that detects bound entanglement within a three-party prepare-and-measure scenario with four-dimensional quantum messages. We rela…