Comparing bound entanglement of bell diagonal pairs of qutrits and ququarts.

ABSTRACT: We compare the classification as entangled or separable of Bell diagonal bipartite qudits with positive partial transposition (PPT) and their properties for different dimensions. For dimension [Formula: see text], a form of entanglement exists that is hard to detect and called bound entanglement due to the fact that such entangled states cannot be used for entanglement distillation. Up to this date, no efficient solution is known to differentiate bound entangled from separable states. We address and compare this problem named separability problem for a family of bipartite Bell diagonal qudits with special algebraic and geometric structures and applications in quantum information processing tasks in different dimensions. Extending analytical and numerical methods and results for Bell diagon

SUBMITTER: Popp C 

PROVIDER: S-EPMC9899246 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature