7 papers · 1 filter
Genuinely entangled subspaces and strongly nonlocal unextendible biseparable bases in four-partite systems
Huaqi Zhou, Ting Gao, Fengli Yan
A set of orthogonal pure states is an unextendible biseparable basis (UBB), which means that its complementary subspace contains only genuinely entangled states. UBBs thus serve as…
Characterizing entanglement shareability and distribution in -partite systems
Hui Li, Ting Gao, Fengli Yan
Exploring the shareability and distribution of entanglement possesses fundamental significance in quantum information tasks. In this paper, we demonstrate that the square of bipart…
Strongest quantum nonlocality in -partite systems
Mengying Hu, Ting Gao, Fengli Yan
A set of orthogonal states possesses the strongest quantum nonlocality if only a trivial orthogonality-preserving positive operator-valued measure (POVM) can be performed for each…
Strong quantum nonlocality without entanglement in every -partition
Huaqi Zhou, Ting Gao, Fengli Yan
Orthogonal product sets that are locally irreducible in every bipartition have the strongest nonlocality while also need a large number of quantum states. In this paper, we constru…
G_q-concurrence and entanglement constraints in multiqubit systems
Hui Li, Ting Gao, Fengli Yan
In this paper, we introduce a category of one-parameter bipartite entanglement quantifiers, termed -concurrence (), and show rigorously that they satisfy all the axiomati…
Entanglement hierarchies in multipartite scenarios
Hui Li, Ting Gao, Fengli Yan
In this paper, we investigate the hierarchical structure of the -partite quantum states. We present a whole set of hierarchical quantifications as a method of characterizing qua…