Satellite quantum repeaters for a quantum Internet
This work presents a satellite alternative to quantum repeaters based on the
terrestrial laid of optical fiber, where the latter have the following
disadvantages: a propagation speed (v) equal to 2/3 of the speed of light (c),
losses and an attenuation in the material that requires the installation of a
repeater every 50 km, while satellite repeaters can cover greater distances at
a speed v = c, with less attenuation and losses than in the case of optical
fiber except for relative environmental aspects to the ground-sky link, i.e.,
clouds that can disrupt the distribution of entangled photons. Two
configurations are presented, the first one of a satellite and the second one
of two satellites in the event that both points on the ground cannot access the
same satellite. Finally, a series of implementations for evaluating the
performance and robustness of both configurations are implemented on a 5 qubits
IBM Q processor.
Sundaraja Sitharama Iyengar Mario Mastriani