  These lecture notes survey some joint work with Samson Abramsky. Somewhat
informally I will discuss the main results in a pedestrian not too technical
way. These include: (1) `The logic of entanglement', that is, the
identification and abstract axiomatization of the `quantum information-flow'
which enables protocols such as quantum teleportation. To this means we define
strongly compact closed categories which abstractly capture the behavioral
properties of quantum entanglement. (2) `Postulates for an abstract quantum
formalism' in which classical information-flow (e.g. token exchange) is part of
the formalism. As an example, we provide a purely formal description of quantum
teleportation and prove correctness in abstract generality. In this formalism
types reflect kinds, contra the essentially typeless von Neumann formalism.
Hence even concretely this formalism manifestly improves on the usual one. (3)
`A high-level approach to quantum informatics'.
