7 papers · 1 filter
Finite-size Entanglement Certification via Third-Order Local Randomized Measurements
Giovanni Scala, Corrado Cosimo Mattiacci, Dorota Pietryka +1
Certifying entanglement in high-dimensional systems usually requires full state tomography, whose cost grows rapidly with the system dimension. Local randomized measurements offer…
Recovery-Free CHSH Nonlocality with Particle Loss
Giovanni Scala, Cosmo Lupo
Can CHSH nonlocality survive particle loss without applying an explicit recovery operation? In principle, any deterministic recovery can be absorbed into the measurement. Operation…
Third-Order Local Randomized Measurements for Finite-size Entanglement Certification
Giovanni Scala, Gniewomir Sarbicki
Randomized measurements access nonlinear functionals without full tomography, yet turning third-order local single-copy data into a strong entanglement test remains difficult. We c…
Preprocessing noise in finite-size quantum key distribution
Gabriele Staffieri, Giuseppe D'Ambruoso, Giovanni Scala +1
It is known that preprocessing noise may boost quantum key distribution by expanding the range of values of tolerated noise. For BB84, adding trusted noise may allow the generation…
Finite-size resource scaling for learning quantum phase transitions with fidelity-based support vector machines
Aaqib Ali, Giovanni Scala, Cosmo Lupo +1
Quantum kernels offer a valid procedure for learning quantum phase transitions on quantum processing devices, yet issues on the scalability of the learning strategy in connection w…
Self-testing tilted strategies for maximal loophole-free nonlocality
Nicolas Gigena, Ekta Panwar, Giovanni Scala +3
The degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detecto…