527 citations
- National Quantum Information Centre in GdanskPL7 papers
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- California Institute of TechnologyUS2 papers
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29 papers · 1 filter
Entanglement-redistribution boxes
Andrzej Grudka, Michal Horodecki, Pawel Horodecki +2
We establish a framework to study the classical-communication properties of primitive local operations assisted by classical communication which realize various redistributions of…
Quantumness Witnesses
Robert Alicki, Marco Piani, Nicholas Van Ryn
A recently proposed test of quantumness [R. Alicki and N. Van Ryn, J. Phys. A: Math. Theor. 41 062001 (2008)] is put into a broader mathematical and physical perspective. The notio…
Quantum decay cannot be completely reversed. The 5% rule
Robert Alicki
Using an exactly solvable model of the Wigner-Weisskopf atom it is shown that an unstable quantum state cannot be recovered completely by the procedure involving detection of the d…
Increasing singlet fraction with entanglement swapping
Joanna Modlawska, Andrzej Grudka
We consider entanglement swapping for certain mixed states. We assume that the initial states have the same singlet fraction and show that the final state can have singlet fraction…
Discriminating multi-partite entangled states
Christian Schmid, Nikolai Kiesel, Wiesław Laskowski +3
The variety of multi-partite entangled states enables numerous applications in novel quantum information tasks. In order to compare the suitability of different states from a theor…
An additive and operational entanglement measure: conditional entanglement of mutual information
Dong Yang, Michal Horodecki, Z. D. Wang
Based on the monogamy of entanglement, we develop the technique of quantum conditioning to build an {\it additive} entanglement measure: the conditional entanglement of mutual info…