217 citations · 1.2k across the 37 of their papers we have counts for
5 papers · 1 filter
A universal framework for entanglement detection
Michał Oszmaniec, Marek Kuś
We construct nonlinear multiparty entanglement measures for distinguishable particles, bosons and fermions. In each case properties of an entanglement measures are related to the d…
Geometry and topology of CC and CQ states
Michał Oszmaniec, Piotr Suwara, Adam Sawicki
We show that multipartite mixed bipartite CC and CQ states are geometrically and topologically distinguished in the space of states. They are characterized by non-vanishing Euler-P…
Critical sets of the total variance of state detect all SLOCC entanglement classes
Adam Sawicki, Michał Oszmaniec, Marek Kuś
We present a general algorithm for finding all classes of pure multiparticle states equivalent under Stochastic Local Operations and Classsical Communication (SLOCC). We parametriz…
Convexity of momentum map, Morse index, and quantum entanglement
Adam Sawicki, Michał Oszmaniec, Marek Kuś
We analyze form the topological perspective the space of all SLOCC (Stochastic Local Operations with Classical Communication) classes of pure states for composite quantum systems.…
On detection of quasiclassical states
Michał Oszmaniec, Marek Kuś
We give a criterion of classicality for mixed states in terms of expectation values of a quantum observable. Using group representation theory we identify all cases when the criter…