25 citations · 47 across the 6 of their papers we have counts for
6 papers · 1 filter
Benchmarking weak randomness in Quantum and Natural Sources
Maciej Stankiewicz, Roberto Salazar, Mikołaj Czechlewski +7
Private randomness is a fundamental resource for cryptography, security proofs, and information processing. Quantum devices offer a unique advantage by amplifying weak randomness s…
Private Weakly-Random Sequences from Human Heart Rate for Quantum Amplification
Maciej Stankiewicz, Karol Horodecki, Omer Sakarya +1
We investigate whether the heart rate can be treated as a semi-random source with the aim of amplification by quantum devices. We use a semi-random source model called -Santha-V…
Upper bounds on the leakage of private data and operational approach to markovianity
Karol Horodecki, Michał Studziński, Ryszard P. Kostecki +2
We quantify the consequences of a private key leakage and private randomness generated during quantum key distribution. We provide simple lower bounds on the one-way distillable ke…
Distance between Bound Entangled States from Unextendible Product Bases and Separable States
Marcin Wieśniak, Palash Pandya, Omer Sakarya +1
We discuss the use of the Gilbert algorithm to tailor entanglement witnesses for unextendibleproduct basis bound entangled states (UPB BE states). The method relies on the fact tha…
Hybrid quantum network design against unauthorized secret-key generation, and its memory cost
Omer Sakarya, Marek Winczewski, Adam Rutkowski +1
A significant number of servers that constitute the Internet are to provide private data via private communication channels to mutually anonymous registered users. Such are the ser…
Hilbert-Schmidt distance and entanglement witnessing
Palash Pandya, Omer Sakarya, Marcin Wieśniak
Gilbert proposed an algorithm for bounding the distance between a given point and a convex set. In this article we apply the Gilbert's algorithm to get an upper bound on the Hilber…