221 citations · 679 across the 19 of their papers we have counts for
3 papers · 2 filters
Universal observable detecting all two-qubit entanglement and determinant based separability tests
Remigiusz Augusiak, Maciej Demianowicz, Pawel Horodecki
We construct a single observable measurement of which mean value on four copies of an {\it unknown} two-qubit state is sufficient for unambiguous decision whether the state is sepa…
Aspects of multistation quantum information broadcasting
Maciej Demianowicz, Paweł Horodecki
We study quantum information transmission over multiparty quantum channel. In particular, we show an equivalence of different capacity notions and provide a multiletter characteriz…
General construction of noiseless networks detecting entanglement with help of linear maps
P. Horodecki, R. Augusiak, M. Demianowicz
We present the general scheme for construction of noiseless networks detecting entanglement with the help of linear, hermiticity-preserving maps. We show how to apply the method to…