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100 papers
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…
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…
Finite-size security of QKD: comparison of three proof techniques
Gabriele Staffieri, Giovanni Scala, Cosmo Lupo
We compare three proof techniques for composable finite-size security of quantum key distribution under collective attacks, with emphasis on how the resulting secret-key rates beha…
Explicit construction of a 2-design of from the theory of angular momentum
Rocco Maggi, Cosmo Lupo, Saverio Pascazio
The main aim of this work is to present an explicit construction of a 2-design of , relying only on a tool that belongs to every physicists toolbox: the theory of angul…
Finite-size secret-key rates of discrete modulation continuous-variable quantum key distribution under Gaussian attacks
Gabriele Staffieri, Giovanni Scala, Cosmo Lupo
Quantum conditional entropies play a fundamental role in quantum information theory. In quantum key distribution, they are exploited to obtain reliable lower bounds on the secret-k…