1.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GdańskPL167 papers
- Gdańsk University of TechnologyPL99 papers
- Adam Mickiewicz University in PoznańPL34 papers
- Polish Academy of SciencesPL28 papers
- Center for Theoretical PhysicsPL27 papers
- Jagiellonian UniversityPL27 papers
- Institute of Photonic SciencesES25 papers
- Barcelona Institute of Science and TechnologyES13 papers
- University College LondonGB13 papers
- Institució Catalana de Recerca i Estudis AvançatsES12 papers
- University of WrocławPL11 papers
- University of WaterlooCA10 papers
10 papers · 1 filter
On thermal stability of topological qubit in Kitaev's 4D model
R. Alicki, M. Horodecki, P. Horodecki +1
We analyse stability of the four-dimensional Kitaev model - a candidate for scalable quantum memory - in finite temperature within the weak coupling Markovian limit. It is shown th…
Entanglement purification protocol for a mixture of a pure entangled state and a pure product state
Mikolaj Czechlewski, Andrzej Grudka, Satoshi Ishizaka +1
We present an entanglement purification protocol for a mixture of a pure entangled state and a pure product state, which are orthogonal to each other. The protocol is combination o…
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…
Adaptive quantum teleportation
Joanna Modlawska, Andrzej Grudka
We consider multiple teleportation in the Knill-Laflamme-Milburn (KLM) scheme. We introduce adaptive teleportation, i.e., such that the choice of entangled state used in the next t…
Structural approximations to positive maps and entanglement breaking channels
J. K. Korbicz, M. L. Almeida, J. Bae +2
Structural approximations to positive, but not completely positive maps are approximate physical realizations of these non-physical maps. They find applications in the design of di…
Nonadditivity effects in classical capacities of quantum multiple-access channels
Lukasz Czekaj, Pawel Horodecki
We study classical capacities of quantum multi-access channels in geometric terms revealing breaking of additivity of Holevo-like capacity. This effect is purely quantum since, as…
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…
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…
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…
Entanglement and Quantum Groups
J. K. Korbicz, J. Wehr, M. Lewenstein
We describe quantum mechanical entanglement in terms of compact quantum groups. We prove an analog of positivity of partial transpose (PPT) criterion and formulate a Horodecki-type…