One neat trick is "storing bandwidth". http://strilanc.com/quantum/2014/05/03/Storing-Bandwidth-with-Superdense-Coding.html http://strilanc.com/quantum/2014/05

One neat trick is "storing bandwidth". http://strilanc.com/quantum/2014/05/03/Storing-Bandwidth-with-Superdense-Coding.html http://strilanc.com/quantum/2014/05/03/Storing-Bandwidth-wit...