Engineers from Northwestern University in the United States achieved an extraordinary milestone by demonstrating quantum transport for the first time using fiber optic cables, the same cables that already carry conventional Internet traffic.
This achievement not only makes integration between quantum communication and existing internet infrastructure possible, but also ushers in a new era of advanced technologies with the potential to revolutionize computing and data security.
The experiment carried out with a 30 km long cable turned out to be a turning point, the team led by Professor Prem Kumar managed to transmit quantum information without interference Even in the midst of intense internet data traffic, the secret of identifying a wavelength less used where delicate quantum photons could transit undisturbed by the millions of light particles that make up regular telecommunications traffic.
With the addition of specialized filters the noise was drastically reduced allowing quantum information to flow efficiently and accurately.
The process of quantum teleportation is based on the phenomenon of quantum entanglement, in which two particles remain connected regardless of the distance between them. When one particle undergoes a change in its state, the other instantly reflects that alteration, as if they shared an invisible bond. .
In the Northwestern experiment, instead of physically transmitting the particles, the information was teleported by jumping from one point to another without having to travel through physical space. Although this idea may sound crazy, it is deeply rooted in the principles of quantum mechanics.
Unlike conventional communications that use millions of light particles to transmit signals, quantum communication operates with extremely sensitive individual photons. Before this discovery, it was believed that these photons would be lost in the chaos of regular internet traffic. However, The engineers managed to create a secure route for them ensuring that they could coexist in classical communications.
The results of this study demonstrate that quantum teleportation is not only possible but also viable in already existing fiber optic networks, this means that it will not be necessary to build new infrastructure to support these futuristic technologies, instead classical and quantum networks can operate simultaneously making the implementation of these innovations more practical and economical.
In the future, the team of researchers already plans to expand the experiments to even greater distances and test the method in real fiber optic networks, outside the controlled environment of the laboratory, and also intends to demonstrate the exchange of quantum entanglement, a process that involves multiple pairs of photons. and that could significantly expand the reach of these networks.
This advance is essential for the development of distributed quantum applications such as ultra-secure networks and revolutionary computing systems.
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