A generic algorithm is developed to reduce the problem of obtaining linear and nonlinear entanglement witnesses of a given quantum system, to convex optimization problem. This approach is completely general and can be applied for the entanglement detection of any N-partite quantum system. For this purpose, a map from convex space of separable density matrices to a convex region called feasible ...

In this era of globalization, when news about political violence can haunt anyone, anywhere, those whose families have suffered political violence in the past are particularly vulnerable to current distress. Skilled in understanding transgenerational processes, family therapists need to be familiar with the mechanisms by which children are exposed to the effects of political violence suffered b...

An observableW that distinguishes all the unentangled states from some entangled states is called a witness. We consider witnesses on n qbits, and use the following normalization: A witness W satisfies |tr(Wρ)| ≤ 1 for all separable states ρ, while kWk > 1, with the norm being the maximum among the absolute values of the eigenvalues of W . Although there are n-qbit witnesses whose norm is expon...

The article takes its starting point in more than 160 personal narratives from former migrants, their children, and grandchildren. testimonies have been collected by cultural-history museums seven European countries – Norway, Denmark, Sweden, Poland, Lithuania, Slovenia Croatia provide a haunting impression of the long-term consequences war forced migration for at least three generations. resea...