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- University of GdańskPL161 papers
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4 papers · 2 filters
An approach to constructing genuinely entangled subspaces of maximal dimension
Maciej Demianowicz, Remigiusz Augusiak
Genuinely entangled subspaces (GESs) are the class of completely entangled subspaces that contain only genuinely multiparty entangled states. They constitute a particularly useful…
Activating hidden metrological usefulness
Géza Tóth, Tamás Vértesi, Paweł Horodecki +1
We consider bipartite entangled states that cannot outperform separable states in any linear interferometer. Then, we show that these states can still be more useful metrologically…
Entanglement of genuinely entangled subspaces and states: exact, approximate, and numerical results
Maciej Demianowicz, Remigiusz Augusiak
Genuinely entangled subspaces (GESs) are those subspaces of multipartite Hilbert spaces that consist only of genuinely multiparty entangled pure states. They are natural generaliza…
Bounds on bipartite entanglement from fixed marginals
Giuseppe Baio, Dariusz Chruscinski, Pawel Horodecki +2
We discuss the problem of characterizing upper bounds on entanglement in a bipartite quantum system when only the reduced density matrices (marginals) are known. In particular, sta…