الخلاصة:
Long-Distance Quantum Communication is a very important resource in our
word, but with the large subscriber members its distribution is very difficult due
to the exponential losses of light in optical fibres. As a possible solution consists
in the use of satellite transmission with quantum repeaters, based on (QEC)
Quantum Error Correction.
Satellite communication idea based on free-space optical links can be used,
achieving better loss-distance scaling with large scal covrage. We propose to
combine quantum repeaters and satellite links, into a scheme that allows to
achieve Quantum Key Distribution (QKD) over global distances with a small
number of intermediate satellite nodes
