46 citations · 63 across the 5 of their papers we have counts for
5 papers
Security of Binary-Modulated Optical Key Distribution Against Quantum-Enhanced Coherent Eavesdropping
Karol Łukanowski, Michał Wójcik, Stefano Olivares +2
Optical key distribution (OKD) protects the physical layer of communication links by taking advantage of the inherent noise present in the photodetection process. It allows for eff…
Quantum Limits on the Capacity of Multispan Links with Phase-sensitive Amplification
Karol Łukanowski, Konrad Banaszek, Marcin Jarzyna
Long-distance fiber communication stands as a cornerstone of modern technology. One of the underlying principles, preventing signal levels from diminishing below the detectability…
Quantum Limits on the Capacity of Multispan Links with Phase-Sensitive Amplification
Karol Łukanowski, Marcin Jarzyna, Konrad Banaszek
The capacity of a linear attenuating optical channel with the signal regenerated using quantum-limited phase-sensitive amplifiers is analyzed for conventional and generalized detec…
Bell nonlocality is not sufficient for the security of standard device-independent quantum key distribution protocols
Máté Farkas, Maria Balanzó-Juandó, Karol Łukanowski +2
Device-independent quantum key distribution is a secure quantum cryptographic paradigm that allows two honest users to establish a secret key, while putting minimal trust in their…
Capacity of a lossy photon channel with direct detection
Karol Łukanowski, Marcin Jarzyna
We calculate numerically the capacity of a lossy photon channel assuming photon number resolving detection at the output. We consider scenarios of input Fock and coherent states en…