Distilling bipartite entanglement from multipartite states - Ben Fortescue

I will discuss some previous and current work on obtaining pure bipartite entanglement from pure multipartite entangled states through local operations and classical communication. The achievability of such transformations depends on both the amount of bipartite entanglement obtained and its distribution between parties. In the first part of the talk I will discuss a single-copy protocol that can, from certain multipartite states, produce substantially higher bipartite entanglement between post-selected compared to pre-selected parties. In the second part I will discuss what bounds are known and what can be achieved using this and other known protocols in the many-copy limit.