590 citations · 5.8k across the 64 of their papers we have counts for
4 papers · 1 filter
A few steps more towards NPT bound entanglement
Łukasz Pankowski, Marco Piani, Michał Horodecki +1
We consider the problem of existence of bound entangled states with non-positive partial transpose (NPT). As one knows, existence of such states would in particular imply nonadditi…
No-local-broadcasting theorem for quantum correlations
Marco Piani, Pawel Horodecki, Ryszard Horodecki
We prove that the correlations present in a multipartite quantum state have an \emph{operational} quantum character as soon as the state does not simply encode a multipartite class…
Entanglement-swapping boxes and their communication properties
Andrzej Grudka, Michal Horodecki, Pawel Horodecki +2
We pose the fundamental question of communication properties of primitives irrespectively of their implementation. To illustrate the idea we introduce the concept of entanglement-s…
On quantum advantage in dense coding
M. Horodecki, M. Piani
The quantum advantage of dense coding is studied, considering general encoding quantum operations. Particular attention is devoted to the case of many senders, and it is shown that…