When the asymptotic limit offers no advantage in the local-operations-and-classical-communication paradigm
When the asymptotic limit offers no advantage in the local-operations-and-classical-communication paradigm
We consider bipartite LOCC, the class of operations implementable by local quantum operations and classical communication between two parties. Surprisingly, there are operations that can be approximated to arbitrary precision but are impossible to implement exactly if only a finite number of messages are exchanged. This significantly complicates the analysis …