  The concentration and distribution of quantum entanglement is an essential
ingredient in emerging quantum information technologies. Much theoretical and
experimental effort has been expended in understanding how to distribute
entanglement in one-dimensional networks. However, as experimental techniques
in quantum communication develop, protocols for multi-dimensional systems
become essential. Here, we focus on recent theoretical developments in
protocols for distributing entanglement in regular and complex networks, with
particular attention to percolation theory and network-based error correction.
