ZME Science: Yes, a quantum internet is possible, new study shows

[Steven Schear]

Agreed that they are dispersion-field limited but their inherent broadband
and "directionality" can, if located far enough from the signal sources and
destinations, solve some interesting comms situations. For example,
metropolitan "relays" able to leap tall buildings in a single bound:). They
can complement broader NVIS HF which is less reliable and narrow band.

On Mon, Dec 31, 2018, 5:08 PM grarpamp <grarpamp at gmail.com wrote:

> On 12/31/18, Steven Schear <schear.steve at gmail.com> wrote:
> > Retrorefltors are very useful. They are hard to beat for covert comms.
> > Unfortunately, optical ones are limited by weather. Much more versatile,
> > if possibly less covert, are radio types. Ultra lights the size of the
> Echo
> > are now easily deployed via inflatable and UV regidification.
>
> Retros point back, perhaps not so much useful for direct
> comms outside their relative dispersion return fields.
> Planar mirrors, lenses, over horizon, ionosphere, relays,
> lofted nuke comms, etc are different.
>
> https://en.wikipedia.org/wiki/Retroreflector
> https://en.wikipedia.org/wiki/List_of_passive_satellites
>
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