809 citations · 3.9k across the 105 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…
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…
Quantum states representing perfectly secure bits are always distillable
Pawel Horodecki, Remigiusz Augusiak
It is proven that recently introduced states with perfectly secure bits of cryptographic key (private states representing secure bit) [K. Horodecki et al., Phys. Rev. Lett. 94, 160…