3 papers
quant-ph2018
Unified approach to geometric and positive-map-based non-linear entanglement identifiers
Marcin Markiewicz, Adrian Kolodziejski, Zbigniew Puchala +3
Detecting quantumness of correlations (especially entanglement) is a very hard task even in the simplest case i.e. two-partite quantum systems. Here we provide an analysis whether…
quant-ph2018
Bell measurement rules out supraquantum correlations
Łukasz Czekaj, Michał Horodecki, Tomasz Tylec
The so called bipartite non-signaling boxes are systems whose statistics is constrained solely by the principle of no instantaneous signaling between distant locations. Such system…
math-ph2017
Equivalence of tensor products over a category of W*-algebras
Ryszard Paweł Kostecki, Tomasz Ignacy Tylec
We prove the equivalence of two tensor products over a category of W*-algebras with normal (not necessarily unital) *-homomorphisms, defined by Guichardet and Dauns, respectively.…