Technical University of Delft scientists have accomplished on-demand entanglement, of sorts. The ability to entangle photons between quantum chips before the photons ‘disentangle’ is thought necessary to create a link between two nodes. This should enable a quantum internet. By 2020, it is hoped four cities in the Netherlands will comprise this network. 

Artist’s impression of a quantum network. (Image Credit: Delft University of Technology)

The original work is found in this PDF from Cornell University Library…

This report is found at TUDelft…