77 citations · 121 across the 5 of their papers we have counts for
5 papers · 1 filter
When non i.i.d. information sources can be communicationally useful?
Marcin Pawlowski, Karol Horodecki, Pawel Horodecki +1
Information sources used for communication purposes usually are assumed to be i.i.d. type, especially as far as entanglement or nonlocality properties are concerned. Here we propos…
Broadcast copies reveal the quantumness of correlations
M. Piani, M. Christandl, C. E. Mora +1
We study the quantumness of bipartite correlations by proposing a quantity that combines a measure of total correlations -- mutual information -- with the notion of broadcast copie…
W-like bound entangled states and secure key distillation
Remigiusz Augusiak, Pawel Horodecki
We construct multipartite entangled states with underlying W-type structure satisfying positive partial transpose (PPT) condition under any (N-1)|1 partition. Then we show how to d…
Unconditional privacy over channels which cannot convey quantum information
Karol Horodecki, Michal Horodecki, Pawel Horodecki +2
By sending systems in specially prepared quantum states, two parties can communicate without an eavesdropper being able to listen. The technique, called quantum cryptography, enabl…
Unifying classical and quantum key distillation
Matthias Christandl, Artur Ekert, Michal Horodecki +3
Assume that two distant parties, Alice and Bob, as well as an adversary, Eve, have access to (quantum) systems prepared jointly according to a tripartite state. In addition, Alice…