6 papers
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…
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…
The future of secure communications: device independence in quantum key distribution
Seyed Arash Ghoreishi, Giovanni Scala, Renato Renner +4
In the ever-evolving landscape of quantum cryptography, Device-independent Quantum Key Distribution (DI-QKD) stands out for its unique approach to ensuring security based not on th…
Optimal and robust error filtration for quantum information processing
Aaqib Ali, Giovanni Scala, Cosmo Lupo
Error filtration is a hardware scheme that mitigates noise by exploiting auxiliary qubits and entangling gates. Although both signal and ancillas are subject to local noise, constr…
Entanglement detection via third-order local invariants from randomized measurements
Giovanni Scala, Anindita Bera, Gniewomir Sarbicki
We compute all third-order local invariants accessible via randomised measurements and employ them to derive separability criteria. The reconstruction of the invariants yields expe…
Robustness of chaotic-light correlation imaging against turbulence
Giovanni Scala, Gianlorenzo Massaro, Germano Borreggine +3
We consider an imaging scheme, inspired by microscopy, in which both correlation imaging and first-order intensity imaging can be performed simultaneously, to investigate the effec…