342 citations · 2.2k across the 63 of their papers we have counts for
65 papers
Entanglement is not sufficient for most practical entanglement-based QKD protocols
Shubhayan Sarkar, Tushita Prasad, Karol Horodecki
Quantum key distribution (QKD) is the most explored application of quantum information theory. A central problem in entanglement-based QKD (EB-QKD), is whether every entangled stat…
Limiting one-way distillable secret key via privacy testing of extendible states
Vishal Singh, Karol Horodecki, Aby Philip +1
The notions of privacy tests and -extendible states have both been instrumental in quantum information theory, particularly in understanding the limits of secure communication.…
Quantum waste management: Utilizing residual states in quantum information processing
Karol Horodecki, Chirag Srivastava, Leonard Sikorski +1
Quantum resource theories use distillation protocols to convert less resourceful states into fully resourceful ones. However, these protocols often also generate an additional, unu…
Quantification of the energy consumption of entanglement distribution
Karol Horodecki, Marek Winczewski, Leonard Sikorski +3
Inspired by environmental sciences, we develop a framework to quantify the energy needed to generate quantum entanglement via noisy quantum channels, focusing on the hardware-indep…
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…
Cost of quantum secret key
Karol Horodecki, Leonard Sikorski, Siddhartha Das +1
In this paper, we develop the resource theory of quantum secret key. Operating under the assumption that entangled states with zero distillable key do not exist, we define the key…