Two physicists at the Chicago Quantum Exchange used different approaches to remove the obstacle to create
Liang Jiang, professor at the University of Chicago,focused on the most widely used solution: the quantum repeater. Quantum relays must be placed between network nodes to generate a quantum signal so that it can travel long distances. According to Jiang, no one has yet built a successful quantum repeater.
In addition to signal regeneration, quantumrepeaters can also prevent data loss over long distances. Error Correction Codes are common in classic networks such as Bluetooth and Wi-Fi, where they control errors that naturally occur when a signal is transmitted from one device to another.
But quantum systems are highly error prone due to the sensitivity of quantum states, so error correction is a large and important area of research.
According to Paul Kvyat, Bardeen's professor of physics inAt the University of Illinois Urbana-Champaign, the solution to the problem of fiber optic signal loss could be to take a quantum network from the ground to the air using drones, or even into space using satellites.
Such a mobile quantum network has manyadvantages, since its nodes are easy to move. For example, it will be easy to conduct large-scale quantum probing or the study of quantum phenomena in different inertial frames of reference to test the relationship between quantum mechanics and relativity. But there are also more practical ideas - to use aircraft as nodes in places where fiber optic connections cannot be made, for example, on naval ships.
Quantum network between satellites in spaceпозволит проводить еще больше испытаний в области фундаментальной квантовой механики, причем на больших расстояниях и скоростях, а также и в регионах с изменяющимися гравитационными эффектами.
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